Please see Update select2 data without rebuilding the control as this may be a duplicate. Another way is to destroy and then recreate the select2 element.
$("#dropdown").select2("destroy");
$("#dropdown").select2();
If you are having problems with resetting the state/region on country change try clearing the current value with
$("#dropdown").select2("val", "");
You can view the documentation here http://ivaynberg.github.io/select2/ that outlines nearly/all features. Select2 supports events such as change
that can be used to update the subsequent dropdowns.
$("#dropdown").on("change", function(e) {});
You can now update the data/list without rebuilding the control using:
fooBarDropdown.select2({
data: fromAccountData
});
Using Dataservice we can call the function from another component
Component1: The component which we are calling the function
constructor( public bookmarkRoot: dataService ) { }
onClick(){
this.bookmarkRoot.callToggle.next( true );
}
dataservice.ts
import { Injectable } from '@angular/core';
@Injectable()
export class dataService {
callToggle = new Subject();
}
Component2:The component which contains the function
constructor( public bookmarkRoot: dataService ) {
this.bookmarkRoot.callToggle.subscribe(( data ) => {
this.closeDrawer();
} )
}
closeDrawer() {
console.log("this is called")
}
Firstly, it would appear that ' should be avoided - The curse of '
Secondly, if there is ever any chance that you're going to generate markup to be returned via AJAX calls, you should avoid the entity names (As not all of the HTML entities are valid in XML) and use the &#XXXX; syntax instead.
Failure to do so may result in the markup being considered as invalid XML.
The entity that is most likely to be affected by this is , which should be replaced by  
Is this a console program project or a Windows project? I'm asking because for a Win32 and similar project, the entry point is WinMain()
.
If it says Subsystem Windows
your entry point should be WinMain(), i.e.
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nShowCmd)
{
your code here ...
}
Besides, speaking of the comments. This is a compile (or more precisely a Link) error, not a run-time error. When you start to debug, the compiler needs to make a complete program (not just to compile your module) and that is when the error occurs.
It does not even get to the point being loaded and run.
Padding aligns structure members to "natural" address boundaries - say, int
members would have offsets, which are mod(4) == 0
on 32-bit platform. Padding is on by default. It inserts the following "gaps" into your first structure:
struct mystruct_A {
char a;
char gap_0[3]; /* inserted by compiler: for alignment of b */
int b;
char c;
char gap_1[3]; /* -"-: for alignment of the whole struct in an array */
} x;
Packing, on the other hand prevents compiler from doing padding - this has to be explicitly requested - under GCC it's __attribute__((__packed__))
, so the following:
struct __attribute__((__packed__)) mystruct_A {
char a;
int b;
char c;
};
would produce structure of size 6
on a 32-bit architecture.
A note though - unaligned memory access is slower on architectures that allow it (like x86 and amd64), and is explicitly prohibited on strict alignment architectures like SPARC.
Swift 3
You can add this code to the default view controller (index 0
) in your tabBarController:
override func viewWillAppear(_ animated: Bool) {
_ = self.tabBarController?.selectedIndex = 1
}
Upon load, this would automatically move the tab to the second item in the list, but also allow the user to manually go back to that view at any time.
Use the Windows API. Call GetForegroundWindow()
.
GetForegroundWindow()
will give you a handle (named hWnd
) to the active window.
Documentation: GetForegroundWindow function | Microsoft Docs
Just to add on to the list if you are using Powershell.
sc.exe query "ServiceName" | findstr RUNNING
The command below does not work because sc
is an alias to Set-Content within Powershell.
sc query "ServiceName" | findstr RUNNING
find
also does not work on Powershell for some reason unknown to me.
sc.exe query "ServiceName" | find RUNNING
For all of you who answered correctly with the jQuery method of $('#idnamehere').show()/.hide()
, thank you.
It seems <script src="http://code.jquery.com/jquery.js"></script>
was misspelled in my header (which would explain why no alert calls were working on that page).
Thanks a million, though, and sorry for wasting your time!
As an appendix to Clint's answer, you can simplify PackageResource
using contextlib.contextmanager
:
@contextlib.contextmanager
def packageResource():
class Package:
...
package = Package()
yield package
package.cleanup()
Alternatively, though probably not as Pythonic, you can override Package.__new__
:
class Package(object):
def __new__(cls, *args, **kwargs):
@contextlib.contextmanager
def packageResource():
# adapt arguments if superclass takes some!
package = super(Package, cls).__new__(cls)
package.__init__(*args, **kwargs)
yield package
package.cleanup()
def __init__(self, *args, **kwargs):
...
and simply use with Package(...) as package
.
To get things shorter, name your cleanup function close
and use contextlib.closing
, in which case you can either use the unmodified Package
class via with contextlib.closing(Package(...))
or override its __new__
to the simpler
class Package(object):
def __new__(cls, *args, **kwargs):
package = super(Package, cls).__new__(cls)
package.__init__(*args, **kwargs)
return contextlib.closing(package)
And this constructor is inherited, so you can simply inherit, e.g.
class SubPackage(Package):
def close(self):
pass
I finally found out how to do this! Basically you need to run adb shell
first and then while you're in the shell run su
, which will switch the shell to run as root!
$: adb shell
$: su
The one problem I still have is that sqlite3 is not installed so the command is not recognized.
In windows you should use %WORKSPACE%
.
Here's a sloppy one-liner that I use from time to time:
var isHTML = RegExp.prototype.test.bind(/(<([^>]+)>)/i);
It will basically return true
for strings containing a <
followed by ANYTHING
followed by >
.
By ANYTHING
, I mean basically anything except an empty string.
It's not great, but it's a one-liner.
Usage
isHTML('Testing'); // false
isHTML('<p>Testing</p>'); // true
isHTML('<img src="hello.jpg">'); // true
isHTML('My < weird > string'); // true (caution!!!)
isHTML('<>'); // false
As you can see it's far from perfect, but might do the job for you in some cases.
//const total_count = await User.find(query).countDocuments();
//const users = await User.find(query).skip(+offset).limit(+limit).sort({[sort]: order}).select('-password');
const result = await User.aggregate([
{$match : query},
{$sort: {[sort]:order}},
{$project: {password: 0, avatarData: 0, tokens: 0}},
{$facet:{
users: [{ $skip: +offset }, { $limit: +limit}],
totalCount: [
{
$count: 'count'
}
]
}}
]);
console.log(JSON.stringify(result));
console.log(result[0]);
return res.status(200).json({users: result[0].users, total_count: result[0].totalCount[0].count});
When doing;
a_file = open('E:\Python Win7-64-AMD 3.3\Test', encoding='utf-8')
...you're trying to open a directory as a file, which may (and on most non UNIX file systems will) fail.
Your other example though;
a_file = open('E:\Python Win7-64-AMD 3.3\Test\a.txt', encoding='utf-8')
should work well if you just have the permission on a.txt
. You may want to use a raw (r
-prefixed) string though, to make sure your path does not contain any escape characters like \n
that will be translated to special characters.
a_file = open(r'E:\Python Win7-64-AMD 3.3\Test\a.txt', encoding='utf-8')
For my use-case I was able to simply pipe to grep.
pg_dump -U user_name --data-only --column-inserts -t nyummy.cimory | grep "tokyo" > tokyo.sql
# Let's add key:value to a dictionary, the functional way
# Create your dictionary class
class my_dictionary(dict):
# __init__ function
def __init__(self):
self = dict()
# Function to add key:value
def add(self, key, value):
self[key] = value
# Main Function
dict_obj = my_dictionary()
limit = int(input("Enter the no of key value pair in a dictionary"))
c=0
while c < limit :
dict_obj.key = input("Enter the key: ")
dict_obj.value = input("Enter the value: ")
dict_obj.add(dict_obj.key, dict_obj.value)
c += 1
print(dict_obj)
If you are using Python2.5 or older try
from operator import mul
def factorial(n):
return reduce(mul, range(1,n+1))
for newer Python, there is factorial in the math module as given in other answers here
In JSONLib you can use this:
String jsonTxt = JSONUtils.valueToString(json, 8, 4);
From the Javadoc:
I use that for all status (update, insert and delete)
CREATE TRIGGER trg_Insert_Test
ON [dbo].[MyTable]
AFTER UPDATE, INSERT, DELETE
AS
BEGIN
SET NOCOUNT ON;
DECLARE @Activity NVARCHAR (50)
-- update
IF EXISTS (SELECT * FROM inserted) AND EXISTS (SELECT * FROM deleted)
BEGIN
SET @Activity = 'UPDATE'
END
-- insert
IF EXISTS (SELECT * FROM inserted) AND NOT EXISTS(SELECT * FROM deleted)
BEGIN
SET @Activity = 'INSERT'
END
-- delete
IF EXISTS (SELECT * FROM deleted) AND NOT EXISTS(SELECT * FROM inserted)
BEGIN
SET @Activity = 'DELETE'
END
-- delete temp table
IF OBJECT_ID('tempdb..#tmpTbl') IS NOT NULL DROP TABLE #tmpTbl
-- get last 1 row
SELECT * INTO #tmpTbl FROM (SELECT TOP 1 * FROM (SELECT * FROM inserted
UNION
SELECT * FROM deleted
) AS A ORDER BY A.Date DESC
) AS T
-- try catch
BEGIN TRY
INSERT INTO MyTable (
[Code]
,[Name]
.....
,[Activity])
SELECT [Code]
,[Name]
,@Activity
FROM #tmpTbl
END TRY BEGIN CATCH END CATCH
-- delete temp table
IF OBJECT_ID('tempdb..#tmpTbl') IS NOT NULL DROP TABLE #tmpTbl
SET NOCOUNT OFF;
END
Find out the web server user
open up terminal and type
lsof -i tcp:80
This will show you the user of the web server process Here is an example from a raspberry pi running debian:
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
apache2 7478 www-data 3u IPv4 450666 0t0 TCP *:http (LISTEN)
apache2 7664 www-data 3u IPv4 450666 0t0 TCP *:http (LISTEN)
apache2 7794 www-data 3u IPv4 450666 0t0 TCP *:http (LISTEN)
The user is www-data
If you give ownership of the web files to the web server:
chown www-data:www-data -R /opt/lamp/htdocs
And chmod 755 for good measure:
chmod 755 -R /opt/lamp/htdocs
Let me know how you go, maybe you need to use 'sudo' before the command, i.e.
sudo chown www-data:www-data -R /opt/lamp/htdocs
if it doesn't work, please give us the output of:
ls -al /opt/lamp/htdocs
IEnumerable
and IEnumerator
both are interfaces in C#.
IEnumerable
is an interface defining a single method GetEnumerator()
that returns an IEnumerator
interface.
This works for read-only access to a collection that implements that IEnumerable
can be used with a foreach
statement.
IEnumerator
has two methods, MoveNext
and Reset
. It also has a property called Current
.
The following shows the implementation of IEnumerable and IEnumerator.
If you already use jquery there is a jquery plugin that handles this:
import pandas as pd
df = pd.read_fwf('log.txt')
df.to_csv('log.csv')
Swift 4.1 and 5. We use queues in many places in our code. So, I created Threads class with all queues. If you don't want to use Threads class you can copy the desired queue code from class methods.
class Threads {
static let concurrentQueue = DispatchQueue(label: "AppNameConcurrentQueue", attributes: .concurrent)
static let serialQueue = DispatchQueue(label: "AppNameSerialQueue")
// Main Queue
class func performTaskInMainQueue(task: @escaping ()->()) {
DispatchQueue.main.async {
task()
}
}
// Background Queue
class func performTaskInBackground(task:@escaping () throws -> ()) {
DispatchQueue.global(qos: .background).async {
do {
try task()
} catch let error as NSError {
print("error in background thread:\(error.localizedDescription)")
}
}
}
// Concurrent Queue
class func perfromTaskInConcurrentQueue(task:@escaping () throws -> ()) {
concurrentQueue.async {
do {
try task()
} catch let error as NSError {
print("error in Concurrent Queue:\(error.localizedDescription)")
}
}
}
// Serial Queue
class func perfromTaskInSerialQueue(task:@escaping () throws -> ()) {
serialQueue.async {
do {
try task()
} catch let error as NSError {
print("error in Serial Queue:\(error.localizedDescription)")
}
}
}
// Perform task afterDelay
class func performTaskAfterDealy(_ timeInteval: TimeInterval, _ task:@escaping () -> ()) {
DispatchQueue.main.asyncAfter(deadline: (.now() + timeInteval)) {
task()
}
}
}
Example showing the use of main queue.
override func viewDidLoad() {
super.viewDidLoad()
Threads.performTaskInMainQueue {
//Update UI
}
}
After searching for a day, I think this is the easiest solution:
imageView.getLayoutParams().width = 250;
imageView.getLayoutParams().height = 250;
imageView.setAdjustViewBounds(true);
You must set up your system proxy You have to go through this path controlpanel>>internet option>>connnection>>LAN settings>> proxy no tik:use proxy server
We can achieve thread safety by using ConcurrentHashMap and synchronisedHashmap and Hashtable. But there is a lot of difference if you look at their architecture.
Both will maintain the lock at the object level. So if you want to perform any operation like put/get then you have to acquire the lock first. At the same time, other threads are not allowed to perform any operation. So at a time, only one thread can operate on this. So the waiting time will increase here. We can say that performance is relatively low when you comparing with ConcurrentHashMap.
It will maintain the lock at segment level. It has 16 segments and maintains the concurrency level as 16 by default. So at a time, 16 threads can be able to operate on ConcurrentHashMap. Moreover, read operation doesn't require a lock. So any number of threads can perform a get operation on it.
If thread1 wants to perform put operation in segment 2 and thread2 wants to perform put operation on segment 4 then it is allowed here. Means, 16 threads can perform update(put/delete) operation on ConcurrentHashMap at a time.
So that the waiting time will be less here. Hence the performance is relatively better than synchronisedHashmap and Hashtable.
An instance of Date always represents a date and cannot be empty. You can use a null value of date2 to represent "there is no date". You will have to check for null whenever you use date2 to avoid a NullPointerException, like when rendering your page:
if (date2 != null)
// print date2
else
// print nothing, or a default value
You can make the button an anchor element, and put it in a paragraph with the attribute:
align='center'
Worked for me.
If your build path is correct, the ctrl + click will work
A different approach would be to have two tab controls, one visible, and one not. You can move the tabs from one to the other like this (vb.net):
If Me.chkShowTab1.Checked = True Then
Me.tabsShown.TabPages.Add(Me.tabsHidden.TabPages("Tab1"))
Me.tabsHidden.TabPages.RemoveByKey("Tab1")
Else
Me.tabsHidden.TabPages.Add(Me.tabsShown.TabPages("Tab1"))
Me.tabsShown.TabPages.RemoveByKey("Tab1")
End If
If the tab order is important, change the .Add method on tabsShown to .Insert and specify the ordinal position. One way to do that is to call a routine that returns the desired ordinal position.
Try browser.execute_script
instead of selenium.GetEval
.
See this answer for example.
Use pyplot.text()
(import matplotlib.pyplot as plt
)
import matplotlib.pyplot as plt
x=[1,2,3]
y=[9,8,7]
plt.plot(x,y)
for a,b in zip(x, y):
plt.text(a, b, str(b))
plt.show()
Note: The first() method doesn't throw an exception as described in the original question. If you're getting this kind of exception, there is another error in your code.
The correct way to user first() and check for a result:
$user = User::where('mobile', Input::get('mobile'))->first(); // model or null
if (!$user) {
// Do stuff if it doesn't exist.
}
Other techniques (not recommended, unnecessary overhead):
$user = User::where('mobile', Input::get('mobile'))->get();
if (!$user->isEmpty()){
$firstUser = $user->first()
}
or
try {
$user = User::where('mobile', Input::get('mobile'))->firstOrFail();
// Do stuff when user exists.
} catch (ErrorException $e) {
// Do stuff if it doesn't exist.
}
or
// Use either one of the below.
$users = User::where('mobile', Input::get('mobile'))->get(); //Collection
if (count($users)){
// Use the collection, to get the first item use $users->first().
// Use the model if you used ->first();
}
Each one is a different way to get your required result.
commons-lang SerializationUtils - using serialization - if all classes are in your control and you can force implementing Serializable
.
Java Deep Cloning Library - using reflection - in cases when the classes or the objects you want to clone are out of your control (a 3rd party library) and you can't make them implement Serializable
, or in cases you don't want to implement Serializable
.
commons-beanutils BeanUtils - in most cases.
Spring BeanUtils - if you are already using spring and hence have this utility on the classpath.
I deliberately omitted the "do-it-yourself" option - the API's above provide a good control over what to and what not to clone (for example using transient
, or String[] ignoreProperties
), so reinventing the wheel isn't preferred.
// Note power of two buffer size
#define kNumPointsInMyBuffer 1024
typedef struct _ringBuffer {
UInt32 currentIndex;
UInt32 sizeOfBuffer;
double data[kNumPointsInMyBuffer];
} ringBuffer;
// Initialize the ring buffer
ringBuffer *myRingBuffer = (ringBuffer *)calloc(1, sizeof(ringBuffer));
myRingBuffer->sizeOfBuffer = kNumPointsInMyBuffer;
myRingBuffer->currentIndex = 0;
// A little function to write into the buffer
// N.B. First argument of writeIntoBuffer() just happens to have the
// same as the one calloc'ed above. It will only point to the same
// space in memory if the calloc'ed pointer is passed to
// writeIntoBuffer() as an arg when the function is called. Consider
// using another name for clarity
void writeIntoBuffer(ringBuffer *myRingBuffer, double *myData, int numsamples) {
// -1 for our binary modulo in a moment
int buffLen = myRingBuffer->sizeOfBuffer - 1;
int lastWrittenSample = myRingBuffer->currentIndex;
int idx;
for (int i=0; i < numsamples; ++i) {
// modulo will automagically wrap around our index
idx = (i + lastWrittenSample) & buffLen;
myRingBuffer->data[idx] = myData[i];
}
// Update the current index of our ring buffer.
myRingBuffer->currentIndex += numsamples;
myRingBuffer->currentIndex &= myRingBuffer->sizeOfBuffer - 1;
}
As long as your ring buffer's length is a power of two, the incredibly fast binary "&" operation will wrap around your index for you. For my application, I'm displaying a segment of audio to the user from a ring buffer of audio acquired from a microphone.
I always make sure that the maximum amount of audio that can be displayed on screen is much less than the size of the ring buffer. Otherwise you might be reading and writing from the same chunk. This would likely give you weird display artifacts.
{
"success": true,
"data": {
"BLR": {
"origin": "JAI",
"destination": "BLR",
"price": 127,
"transfers": 0,
"airline": "LB",
"flight_number": 655,
"departure_at": "2017-06-03T18:20:00Z",
"return_at": "2017-06-07T08:30:00Z",
"expires_at": "2017-03-05T08:40:31Z"
}
}
};
You can specify border separately for all borders, for example:
#testdiv{
border-left: 1px solid #000;
border-right: 2px solid #FF0;
}
You can also specify the look of the border, and use separate style for the top, right, bottom and left borders. for example:
#testdiv{
border: 1px #000;
border-style: none solid none solid;
}
I know this is an old thread, however, this topic in my opinion becomes of great importance for those using the functional approach for all those usecases where you need a microservice that loads "instantly" and therefore you avoid using annotations. The problem that remained unsolved was to load eventually the environment variables which I had in my application.yml.
public class AppPropsLoader {
public static Properties load() {
var propPholderConfig = new PropertySourcesPlaceHolderConfigurer();
var yaml = new YamlPropertiesFactoryBean();
ClassPathResource resource = new ClassPathResource("application.yml");
Objects.requireNonNull(resource, "File application.yml does not exist");
yaml.setResources(resource);
Objects.requireNonNull(yaml.getObject(), "Configuration cannot be null");
propPholderConfig.postProcessBeanFactory(new DefaultListableBeanFactory());
propPholderConfig.setProperties(yaml.getObject());
PropertySources appliedPropertySources =
propPholderConfig.getAppliedPropertySources();
var resolver = new PropertySourcesPlaceholderResolver(appliedPropertySources);
Properties resolvedProps = new Properties();
for (Map.Entry<Object, Object> prop: yaml.getObject().entrySet()) {
resolvedProps.setProperty((String)prop.getKey(),
getPropertyValue(resolver.resolvePlaceHolders(prop.getValue()));
}
return resolvedProps;
}
static String getPropertyValue(Object prop) {
var val = String.valueOf(prop);
Pattern p = Pattern.compile("^(\\$\\{)([a-zA-Z0-9-._]+)(\\})$");
Matcher m = p.matcher(val);
if(m.matches()) {
return System.getEnv(m.group(2));
}
return val;
}
}
This is the class where the connection is established and messages are recieved. Make sure to pair the devices before you run the application. If you want to have a slave/master connection, where each slave can only send messages to the master , and the master can broadcast messages to all slaves. You should only pair the master with each slave , but you shouldn't pair the slaves together.
package com.example.gaby.coordinatorv1;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Set;
import java.util.UUID;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothServerSocket;
import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.widget.Toast;
public class Piconet {
private final static String TAG = Piconet.class.getSimpleName();
// Name for the SDP record when creating server socket
private static final String PICONET = "ANDROID_PICONET_BLUETOOTH";
private final BluetoothAdapter mBluetoothAdapter;
// String: device address
// BluetoothSocket: socket that represent a bluetooth connection
private HashMap<String, BluetoothSocket> mBtSockets;
// String: device address
// Thread: thread for connection
private HashMap<String, Thread> mBtConnectionThreads;
private ArrayList<UUID> mUuidList;
private ArrayList<String> mBtDeviceAddresses;
private Context context;
private Handler handler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case 1:
Toast.makeText(context, msg.getData().getString("msg"), Toast.LENGTH_SHORT).show();
break;
default:
break;
}
};
};
public Piconet(Context context) {
this.context = context;
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
mBtSockets = new HashMap<String, BluetoothSocket>();
mBtConnectionThreads = new HashMap<String, Thread>();
mUuidList = new ArrayList<UUID>();
mBtDeviceAddresses = new ArrayList<String>();
// Allow up to 7 devices to connect to the server
mUuidList.add(UUID.fromString("a60f35f0-b93a-11de-8a39-08002009c666"));
mUuidList.add(UUID.fromString("54d1cc90-1169-11e2-892e-0800200c9a66"));
mUuidList.add(UUID.fromString("6acffcb0-1169-11e2-892e-0800200c9a66"));
mUuidList.add(UUID.fromString("7b977d20-1169-11e2-892e-0800200c9a66"));
mUuidList.add(UUID.fromString("815473d0-1169-11e2-892e-0800200c9a66"));
mUuidList.add(UUID.fromString("503c7434-bc23-11de-8a39-0800200c9a66"));
mUuidList.add(UUID.fromString("503c7435-bc23-11de-8a39-0800200c9a66"));
Thread connectionProvider = new Thread(new ConnectionProvider());
connectionProvider.start();
}
public void startPiconet() {
Log.d(TAG, " -- Looking devices -- ");
// The devices must be already paired
Set<BluetoothDevice> pairedDevices = mBluetoothAdapter
.getBondedDevices();
if (pairedDevices.size() > 0) {
for (BluetoothDevice device : pairedDevices) {
// X , Y and Z are the Bluetooth name (ID) for each device you want to connect to
if (device != null && (device.getName().equalsIgnoreCase("X") || device.getName().equalsIgnoreCase("Y")
|| device.getName().equalsIgnoreCase("Z") || device.getName().equalsIgnoreCase("M"))) {
Log.d(TAG, " -- Device " + device.getName() + " found --");
BluetoothDevice remoteDevice = mBluetoothAdapter
.getRemoteDevice(device.getAddress());
connect(remoteDevice);
}
}
} else {
Toast.makeText(context, "No paired devices", Toast.LENGTH_SHORT).show();
}
}
private class ConnectionProvider implements Runnable {
@Override
public void run() {
try {
for (int i=0; i<mUuidList.size(); i++) {
BluetoothServerSocket myServerSocket = mBluetoothAdapter
.listenUsingRfcommWithServiceRecord(PICONET, mUuidList.get(i));
Log.d(TAG, " ** Opened connection for uuid " + i + " ** ");
// This is a blocking call and will only return on a
// successful connection or an exception
Log.d(TAG, " ** Waiting connection for socket " + i + " ** ");
BluetoothSocket myBTsocket = myServerSocket.accept();
Log.d(TAG, " ** Socket accept for uuid " + i + " ** ");
try {
// Close the socket now that the
// connection has been made.
myServerSocket.close();
} catch (IOException e) {
Log.e(TAG, " ** IOException when trying to close serverSocket ** ");
}
if (myBTsocket != null) {
String address = myBTsocket.getRemoteDevice().getAddress();
mBtSockets.put(address, myBTsocket);
mBtDeviceAddresses.add(address);
Thread mBtConnectionThread = new Thread(new BluetoohConnection(myBTsocket));
mBtConnectionThread.start();
Log.i(TAG," ** Adding " + address + " in mBtDeviceAddresses ** ");
mBtConnectionThreads.put(address, mBtConnectionThread);
} else {
Log.e(TAG, " ** Can't establish connection ** ");
}
}
} catch (IOException e) {
Log.e(TAG, " ** IOException in ConnectionService:ConnectionProvider ** ", e);
}
}
}
private class BluetoohConnection implements Runnable {
private String address;
private final InputStream mmInStream;
public BluetoohConnection(BluetoothSocket btSocket) {
InputStream tmpIn = null;
try {
tmpIn = new DataInputStream(btSocket.getInputStream());
} catch (IOException e) {
Log.e(TAG, " ** IOException on create InputStream object ** ", e);
}
mmInStream = tmpIn;
}
@Override
public void run() {
byte[] buffer = new byte[1];
String message = "";
while (true) {
try {
int readByte = mmInStream.read();
if (readByte == -1) {
Log.e(TAG, "Discarting message: " + message);
message = "";
continue;
}
buffer[0] = (byte) readByte;
if (readByte == 0) { // see terminateFlag on write method
onReceive(message);
message = "";
} else { // a message has been recieved
message += new String(buffer, 0, 1);
}
} catch (IOException e) {
Log.e(TAG, " ** disconnected ** ", e);
}
mBtDeviceAddresses.remove(address);
mBtSockets.remove(address);
mBtConnectionThreads.remove(address);
}
}
}
/**
* @param receiveMessage
*/
private void onReceive(String receiveMessage) {
if (receiveMessage != null && receiveMessage.length() > 0) {
Log.i(TAG, " $$$$ " + receiveMessage + " $$$$ ");
Bundle bundle = new Bundle();
bundle.putString("msg", receiveMessage);
Message message = new Message();
message.what = 1;
message.setData(bundle);
handler.sendMessage(message);
}
}
/**
* @param device
* @param uuidToTry
* @return
*/
private BluetoothSocket getConnectedSocket(BluetoothDevice device, UUID uuidToTry) {
BluetoothSocket myBtSocket;
try {
myBtSocket = device.createRfcommSocketToServiceRecord(uuidToTry);
myBtSocket.connect();
return myBtSocket;
} catch (IOException e) {
Log.e(TAG, "IOException in getConnectedSocket", e);
}
return null;
}
private void connect(BluetoothDevice device) {
BluetoothSocket myBtSocket = null;
String address = device.getAddress();
BluetoothDevice remoteDevice = mBluetoothAdapter.getRemoteDevice(address);
// Try to get connection through all uuids available
for (int i = 0; i < mUuidList.size() && myBtSocket == null; i++) {
// Try to get the socket 2 times for each uuid of the list
for (int j = 0; j < 2 && myBtSocket == null; j++) {
Log.d(TAG, " ** Trying connection..." + j + " with " + device.getName() + ", uuid " + i + "...** ");
myBtSocket = getConnectedSocket(remoteDevice, mUuidList.get(i));
if (myBtSocket == null) {
try {
Thread.sleep(200);
} catch (InterruptedException e) {
Log.e(TAG, "InterruptedException in connect", e);
}
}
}
}
if (myBtSocket == null) {
Log.e(TAG, " ** Could not connect ** ");
return;
}
Log.d(TAG, " ** Connection established with " + device.getName() +"! ** ");
mBtSockets.put(address, myBtSocket);
mBtDeviceAddresses.add(address);
Thread mBluetoohConnectionThread = new Thread(new BluetoohConnection(myBtSocket));
mBluetoohConnectionThread.start();
mBtConnectionThreads.put(address, mBluetoohConnectionThread);
}
public void bluetoothBroadcastMessage(String message) {
//send message to all except Id
for (int i = 0; i < mBtDeviceAddresses.size(); i++) {
sendMessage(mBtDeviceAddresses.get(i), message);
}
}
private void sendMessage(String destination, String message) {
BluetoothSocket myBsock = mBtSockets.get(destination);
if (myBsock != null) {
try {
OutputStream outStream = myBsock.getOutputStream();
final int pieceSize = 16;
for (int i = 0; i < message.length(); i += pieceSize) {
byte[] send = message.substring(i,
Math.min(message.length(), i + pieceSize)).getBytes();
outStream.write(send);
}
// we put at the end of message a character to sinalize that message
// was finished
byte[] terminateFlag = new byte[1];
terminateFlag[0] = 0; // ascii table value NULL (code 0)
outStream.write(new byte[1]);
} catch (IOException e) {
Log.d(TAG, "line 278", e);
}
}
}
}
Your main activity should be as follow :
package com.example.gaby.coordinatorv1;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity {
private Button discoveryButton;
private Button messageButton;
private Piconet piconet;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
piconet = new Piconet(getApplicationContext());
messageButton = (Button) findViewById(R.id.messageButton);
messageButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
piconet.bluetoothBroadcastMessage("Hello World---*Gaby Bou Tayeh*");
}
});
discoveryButton = (Button) findViewById(R.id.discoveryButton);
discoveryButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
piconet.startPiconet();
}
});
}
}
And here's the XML Layout :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<Button
android:id="@+id/discoveryButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Discover"
/>
<Button
android:id="@+id/messageButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Send message"
/>
Do not forget to add the following permissions to your Manifest File :
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
LG, VIZIO, SAMSUNG and PANASONIC TVs are not android based, and you cannot run APKs off of them... You should just buy a fire stick and call it a day. The only TVs that are android-based, and you can install APKs are: SONY, PHILIPS and SHARP.
#FACTS.
If you'd like to know how to sort a linked list without using standard Java libraries, I'd suggest looking at different algorithms yourself. Examples here show how to implement an insertion sort, another StackOverflow post shows a merge sort, and ehow even gives some examples on how to create a custom compare function in case you want to further customize your sort.
another simple approach with modern built-in stuff like PercentRelativeLayout is now available for new users who hit this problem. thanks to android team for release this item.
<android.support.percent.PercentRelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
app:layout_widthPercent="50%">
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/picture"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop" />
<TextView
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#55000000"
android:paddingBottom="15dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="15dp"
android:textColor="@android:color/white" />
</FrameLayout>
and for better performance you can use some stuff like picasso image loader which help you to fill whole width of every image parents. for example in your adapter you should use this:
int width= context.getResources().getDisplayMetrics().widthPixels;
com.squareup.picasso.Picasso
.with(context)
.load("some url")
.centerCrop().resize(width/2,width/2)
.error(R.drawable.placeholder)
.placeholder(R.drawable.placeholder)
.into(item.drawableId);
now you dont need CustomImageView Class anymore.
P.S i recommend to use ImageView in place of Type Int in class Item.
hope this help..
var table =$('#example').DataTable( {
data: yourdata ,
columns: [
{ data: "id" },
{ data: "name" },
{ data: "parent" },
{ data: "date" },
{data: "id" , render : function ( data, type, row, meta ) {
return type === 'display' ?
'<a href="<?php echo $delete_url;?>'+ data +'" ><i class="fe fe-delete"></i></a>' :
data;
}},
],
}
}
import {DomSanitizationService} from '@angular/platform-browser';
@Component({
templateUrl: 'build/pages/veeu/veeu.html'
})
export class VeeUPage {
trustedURL:any;
static get parameters() {
return [NavController, App, MenuController,
DomSanitizationService];
}
constructor(nav, app, menu, sanitizer) {
this.app = app;
this.nav = nav;
this.menu = menu;
this.sanitizer = sanitizer;
this.trustedURL = sanitizer.bypassSecurityTrustUrl(this.mediaItems[1].url);
}
}
<iframe [src]='trustedURL' width="640" height="360" frameborder="0"
webkitallowfullscreen mozallowfullscreen allowfullscreen>
</iframe>
User property binding instead of function.
This is a simple example of JSON parsing by taking example of google map API. This will return City name of given zip code.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Newtonsoft.Json;
using System.Net;
namespace WebApplication1
{
public partial class WebForm1 : System.Web.UI.Page
{
WebClient client = new WebClient();
string jsonstring;
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
jsonstring = client.DownloadString("http://maps.googleapis.com/maps/api/geocode/json?address="+txtzip.Text.Trim());
dynamic dynObj = JsonConvert.DeserializeObject(jsonstring);
Response.Write(dynObj.results[0].address_components[1].long_name);
}
}
}
Assgining a value that starts with a "=" will kick in formula evaluation and gave in my case the above mentioned error #1004. Prepending it with a space was the ticket for me.
You do not need jQuery to do this...
function sortUnorderedList(ul, sortDescending) {
if(typeof ul == "string")
ul = document.getElementById(ul);
// Idiot-proof, remove if you want
if(!ul) {
alert("The UL object is null!");
return;
}
// Get the list items and setup an array for sorting
var lis = ul.getElementsByTagName("LI");
var vals = [];
// Populate the array
for(var i = 0, l = lis.length; i < l; i++)
vals.push(lis[i].innerHTML);
// Sort it
vals.sort();
// Sometimes you gotta DESC
if(sortDescending)
vals.reverse();
// Change the list on the page
for(var i = 0, l = lis.length; i < l; i++)
lis[i].innerHTML = vals[i];
}
Easy to use...
sortUnorderedList("ID_OF_LIST");
Even though CMD is written down in the Dockerfile, it really is runtime information. Just like EXPOSE, but contrary to e.g. RUN and ADD. By this, I mean that you can override it later, in an extending Dockerfile, or simple in your run command, which is what you are experiencing. At all times, there can be only one CMD.
If you want to run multiple services, I indeed would use supervisor. You can make a supervisor configuration file for each service, ADD these in a directory, and run the supervisor with supervisord -c /etc/supervisor
to point to a supervisor configuration file which loads all your services and looks like
[supervisord]
nodaemon=true
[include]
files = /etc/supervisor/conf.d/*.conf
If you would like more details, I wrote a blog on this subject here: http://blog.trifork.com/2014/03/11/using-supervisor-with-docker-to-manage-processes-supporting-image-inheritance/
The count
method of NSArray
returns an NSUInteger
, and on the 64-bit OS X platform
NSUInteger
is defined as unsigned long
, andunsigned long
is a 64-bit unsigned integer.int
is a 32-bit integer.So int
is a "smaller" datatype than NSUInteger
, therefore the compiler warning.
See also NSUInteger in the "Foundation Data Types Reference":
When building 32-bit applications, NSUInteger is a 32-bit unsigned integer. A 64-bit application treats NSUInteger as a 64-bit unsigned integer.
To fix that compiler warning, you can either declare the local count
variable as
NSUInteger count;
or (if you are sure that your array will never contain more than 2^31-1
elements!),
add an explicit cast:
int count = (int)[myColors count];
From xaml code you can call a predefined SystemCommand:
Command="SystemCommands.MinimizeWindowCommand"
I think this should be the prefered way...
When git push [$there]
does not say what to push, we have used the
traditional "matching" semantics so far (all your branches were sent
to the remote as long as there already are branches of the same name
over there). In Git 2.0, the default is now the "simple" semantics,
which pushes:
only the current branch to the branch with the same name, and only when the current branch is set to integrate with that remote branch, if you are pushing to the same remote as you fetch from; or
only the current branch to the branch with the same name, if you are pushing to a remote that is not where you usually fetch from.
You can use the configuration variable "push.default" to change this. If you are an old-timer who wants to keep using the "matching" semantics, you can set the variable to "matching", for example. Read the documentation for other possibilities.
When git add -u
and git add -A
are run inside a subdirectory
without specifying which paths to add on the command line, they
operate on the entire tree for consistency with git commit -a
and
other commands (these commands used to operate only on the current
subdirectory). Say git add -u .
or git add -A .
if you want to
limit the operation to the current directory.
git add <path>
is the same as git add -A <path>
now, so that
git add dir/
will notice paths you removed from the directory and
record the removal. In older versions of Git, git add <path>
used
to ignore removals. You can say git add --ignore-removal <path>
to
add only added or modified paths in <path>
, if you really want to.
this works only if WebResponse is a HttpWebResponse.
try
{
...
}
catch (System.Net.WebException exc)
{
var webResponse = exc.Response as System.Net.HttpWebResponse;
if (webResponse != null &&
webResponse.StatusCode == System.Net.HttpStatusCode.Unauthorized)
{
MessageBox.Show("401");
}
else
throw;
}
SELECT
dp.state_desc + ' '
+ dp.permission_name collate latin1_general_cs_as
+ ISNULL((' ON ' + QUOTENAME(s.name) + '.' + QUOTENAME(o.name)),'')
+ ' TO ' + QUOTENAME(dpr.name)
FROM sys.database_permissions AS dp
LEFT JOIN sys.objects AS o ON dp.major_id=o.object_id
LEFT JOIN sys.schemas AS s ON o.schema_id = s.schema_id
LEFT JOIN sys.database_principals AS dpr ON dp.grantee_principal_id=dpr.principal_id
WHERE dpr.name NOT IN ('public','guest')
Slight change of the accepted answer if you want to grab permissions that are applied at database level in addition to object level. Basically switch to LEFT JOIN
and make sure to handle NULL
for object
and schema
names
.
$animals = array('--Select Animal--', 'Cat', 'Dog', 'Cow');
$selected_key = $_POST['animal'];
$selected_val = $animals[$_POST['animal']];
Use your $animals list to generate your dropdown list; you now can get the key & the value of that key.
I am not sure if this has to be explicitly enabled anywhere..but for this to work in the first place you need to include the javadoc jar files with the related jars in your project. Then when you do a Cntrl+Space it shows autocomplete and javadocs.
For Mac OS:
#ifdef __APPLE__
For MingW on Windows:
#ifdef __MINGW32__
For Linux:
#ifdef __linux__
For other Windows compilers, check this thread and this for several other compilers and architectures.
probably, the best approach is to use nullif function.
in general
select
count(nullif(myCol = false, true)), -- count true values
count(nullif(myCol = true, true)), -- count false values
count(myCol);
or in short
select
count(nullif(myCol, true)), -- count false values
count(nullif(myCol, false)), -- count true values
count(myCol);
http://www.postgresql.org/docs/9.0/static/functions-conditional.html
If I understand, you want to hide a div when you click anywhere but the div, and if you do click while over the div, then it should NOT close. You can do that with this code:
$(document).click(function() {
alert("me");
});
$(".myDiv").click(function(e) {
e.stopPropagation(); // This is the preferred method.
return false; // This should not be used unless you do not want
// any click events registering inside the div
});
This binds the click to the entire page, but if you click on the div in question, it will cancel the click event.
git rm --cached *.FileExtension
This must ignore all files from this extension
When I think of dummy variables I think of using them in the context of OLS regression, and I would do something like this:
import numpy as np
import pandas as pd
import statsmodels.api as sm
my_data = np.array([[5, 'a', 1],
[3, 'b', 3],
[1, 'b', 2],
[3, 'a', 1],
[4, 'b', 2],
[7, 'c', 1],
[7, 'c', 1]])
df = pd.DataFrame(data=my_data, columns=['y', 'dummy', 'x'])
just_dummies = pd.get_dummies(df['dummy'])
step_1 = pd.concat([df, just_dummies], axis=1)
step_1.drop(['dummy', 'c'], inplace=True, axis=1)
# to run the regression we want to get rid of the strings 'a', 'b', 'c' (obviously)
# and we want to get rid of one dummy variable to avoid the dummy variable trap
# arbitrarily chose "c", coefficients on "a" an "b" would show effect of "a" and "b"
# relative to "c"
step_1 = step_1.applymap(np.int)
result = sm.OLS(step_1['y'], sm.add_constant(step_1[['x', 'a', 'b']])).fit()
print result.summary()
Here, using CASE Statement
and find result:
select (case when condition1 then result1
when condition2 then result2
else result3
end) as columnname from tablenmae:
For example:
select (CASE WHEN IDParent< 1 then ID
else IDParent END) as columnname
from tablenmae
I faced a similar issue, but then checked .npmrc file and there was incorrect password in that that caused the connection failure and there fore yarn --verbose returned Bad request error. After correcting the password, the packages were added successfully.
if you want inclusive comparison with LocalDate
then use this code.
LocalDate from = LocalDate.of(2021,8,1);
LocalDate to = LocalDate.of(2021,8,1);
LocalDate current = LocalDate.of(2021,8,1);
boolean isDateInRage = ( ! (current.isBefore(from.minusDays(1)) && current.isBefore(to.plusDays(1))) );
StringUtils.isBlank()
will also check for null, whereas this:
String foo = getvalue("foo");
if (foo.isEmpty())
will throw a NullPointerException
if foo
is null.
select a.ip, a.os, a.hostname, a.port, a.protocol,
b.state
from a
left join b on a.ip = b.ip
and a.port = b.port
This answer seems to be the answer you are looking for Why can't I do this: dynamic x = new ExpandoObject { Foo = 12, Bar = "twelve" }
Read about the ExpandoObject
here https://msdn.microsoft.com/en-us/library/system.dynamic.expandoobject(v=vs.110).aspx
And the dynamic
type here https://msdn.microsoft.com/en-GB/library/dd264736.aspx
Content in md-dialog-content
is automatically scrollable.
You can manually set the size in the call to MdDialog.open
let dialogRef = dialog.open(MyComponent, {
height: '400px',
width: '600px',
});
Further documentation / examples for scrolling and sizing: https://material.angular.io/components/dialog/overview
Some colors should be determined by your theme. See here for theming docs: https://material.angular.io/guide/theming
If you want to override colors and such, use Elmer's technique of just adding the appropriate css.
Note that you must have the HTML 5 <!DOCTYPE html>
on your page for the size of your dialog to fit the contents correctly ( https://github.com/angular/material2/issues/2351 )
There are some predefined formats in date_d.php
to use with format
like:
define ('DATE_ATOM', "Y-m-d\TH:i:sP");
define ('DATE_COOKIE', "l, d-M-y H:i:s T");
define ('DATE_ISO8601', "Y-m-d\TH:i:sO");
define ('DATE_RFC822', "D, d M y H:i:s O");
define ('DATE_RFC850', "l, d-M-y H:i:s T");
define ('DATE_RFC1036', "D, d M y H:i:s O");
define ('DATE_RFC1123', "D, d M Y H:i:s O");
define ('DATE_RFC2822', "D, d M Y H:i:s O");
define ('DATE_RFC3339', "Y-m-d\TH:i:sP");
define ('DATE_RSS', "D, d M Y H:i:s O");
define ('DATE_W3C', "Y-m-d\TH:i:sP");
Use like this:
$date = new \DateTime();
$string = $date->format(DATE_RFC2822);
To add to this - it seems important to define the width & height of the drawable as per this post:
(his code works)
Detect key press, including key combinations:
window.addEventListener('keydown', function (e) {
if (e.ctrlKey && e.keyCode == 90) {
// Ctrl + z pressed
}
});
Benefit here is that you are not overwriting any global properties, but instead merely introducing a side effect. Not good, but definitely a whole lot less nefarious than other suggestions on here.
enum Rank: Int
{
case Ace = 0
case Two, Three, Four, Five, Six, Seve, Eight, Nine, Ten
case Jack, Queen, King
case Count
}
enum Suit : Int
{
case Spades = 0
case Hearts, Diamonds, Clubs
case Count
}
struct Card
{
var rank:Rank
var suit:Suit
}
class Test
{
func makeDeck() -> Card[]
{
let suitsCount:Int = Suit.Count.toRaw()
let rankCount:Int = Rank.Count.toRaw()
let repeatedCard:Card = Card(rank:Rank.Ace, suit:Suit.Spades)
let deck:Card[] = Card[](count:suitsCount*rankCount, repeatedValue:repeatedCard)
for i:Int in 0..rankCount
{
for j:Int in 0..suitsCount
{
deck[i*suitsCount+j] = Card(rank: Rank.fromRaw(i)!, suit: Suit.fromRaw(j)!)
}
}
return deck
}
}
Based on Rick answer: this is 5 times faster
Have a look at the UUID class bundled with Java 5 and later.
For example:
Personally, I couldn't use try/except KeyboardInterrupt because I was using standard socket (IPC) mode which is blocking. So the SIGINT was cueued, but came only after receiving data on the socket.
Setting a signal handler behaves the same.
On the other hand, this only works for an actual terminal. Other starting environments might not accept Ctrl+C, or pre-handle the signal.
Also, there are "Exceptions" and "BaseExceptions" in Python, which differ in the sense that interpreter needs to exit cleanly itself, so some exceptions have a higher priority than others (Exceptions is derived from BaseException)
Thread is a class, not an instance; currentThread() is a static method that returns the Thread instance corresponding to the calling thread.
Use (2). interrupt() is a bit brutal for normal use.
Just in case if you want to do this using an npm package semver
link
let fs = require('fs');
let semver = require('semver');
if (fs.existsSync('./package.json')) {
var package = require('./package.json');
let currentVersion = package.version;
let type = process.argv[2];
if (!['major', 'minor', 'patch'].includes(type)) {
type = 'patch';
}
let newVersion = semver.inc(package.version, type);
package.version = newVersion;
fs.writeFileSync('./package.json', JSON.stringify(package, null, 2));
console.log('Version updated', currentVersion, '=>', newVersion);
}
package.json
should look like,
{
"name": "versioning",
"version": "0.0.0",
"description": "Update version in package.json using npm script",
"main": "version.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"version": "node version.js"
},
"author": "Bhadresh Arya",
"license": "ISC",
"dependencies": {
"semver": "^7.3.2"
}
}
just pass major
, minor
, patch
argument with npm run version
. Default will be patch
.
example:
npm run version
or npm run verison patch
or npm run verison minor
or npm run version major
sdleihssirhc's answer is of course the correct one for the case in the question, but just as a reference if you need to select elements that don't have a certain class, you can use the not selector:
// select all divs that don't have class test
$( 'div' ).not( ".test" );
$( 'div:not(.test)' ); // <-- alternative
As commented, just in case the link I posted there broke, try this:
Add a Name(any valid name) in Excel's Name Manager under Formula tab in the Ribbon.
Then assign a formula using GET.CELL function.
=GET.CELL(63,INDIRECT("rc",FALSE))
63 stands for backcolor.
Let's say we name it Background so in any cell with color type:
=Background
Result:
Notice that Cells A2, A3 and A4 returns 3, 4, and 5 respectively which equates to the cells background color index. HTH.
BTW, here's a link on Excel's Color Index
You may simply use MultipartHttpServletRequest
Example:
@RequestMapping(value={"/upload"}, method = RequestMethod.POST,produces = "text/html; charset=utf-8")
@ResponseBody
public String upload(MultipartHttpServletRequest request /*@RequestBody MultipartFile file*/){
String responseMessage = "OK";
MultipartFile file = request.getFile("file");
String param = request.getParameter("param");
try {
System.out.println(file.getOriginalFilename());
System.out.println("some param = "+param);
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(file.getInputStream(), StandardCharsets.UTF_8));
// read file
}
catch(Exception ex){
ex.printStackTrace();
responseMessage = "fail";
}
return responseMessage;
}
Where parameters names in request.getParameter()
must be same with corresponding frontend names.
Note, that file extracted via getFile()
while other additional parameters extracted via getParameter()
how does rails know that
user_id
is a foreign key referencinguser
?
Rails itself does not know that user_id
is a foreign key referencing user
. In the first command rails generate model Micropost user_id:integer
it only adds a column user_id
however rails does not know the use of the col. You need to manually put the line in the Micropost
model
class Micropost < ActiveRecord::Base
belongs_to :user
end
class User < ActiveRecord::Base
has_many :microposts
end
the keywords belongs_to
and has_many
determine the relationship between these models and declare user_id
as a foreign key to User
model.
The later command rails generate model Micropost user:references
adds the line belongs_to :user
in the Micropost
model and hereby declares as a foreign key.
FYI
Declaring the foreign keys using the former method only lets the Rails know about the relationship the models/tables have. The database is unknown about the relationship. Therefore when you generate the EER Diagrams using software like MySql Workbench
you find that there is no relationship threads drawn between the models. Like in the following pic
However, if you use the later method you find that you migration file looks like:
def change
create_table :microposts do |t|
t.references :user, index: true
t.timestamps null: false
end
add_foreign_key :microposts, :users
Now the foreign key is set at the database level. and you can generate proper EER
diagrams.
Use alter session set current_schema = <username>
, in your case as an execute immediate.
See Oracle's documentation for further information.
In your case, that would probably boil down to (untested)
DECLARE
CURSOR client_cur IS
SELECT distinct username
from all_users
where length(username) = 3;
-- client cursor
CURSOR emails_cur IS
SELECT id, name
FROM org;
BEGIN
FOR client IN client_cur LOOP
-- ****
execute immediate
'alter session set current_schema = ' || client.username;
-- ****
FOR email_rec in client_cur LOOP
dbms_output.put_line(
'Org id is ' || email_rec.id ||
' org nam ' || email_rec.name);
END LOOP;
END LOOP;
END;
/
You can Publish the Solution with desired path by below code, Here PublishInDFolder is the name that has the path where we need to publish(we need to create this in below pic)
You can create publish file like this
Add below 2 lines of code in batch file(.bat)
@echo OFF
call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\Tools\VsMSBuildCmd.bat"
MSBuild.exe D:\\Solution\\DataLink.sln /p:DeployOnBuild=true /p:PublishProfile=PublishInDFolder
pause
We have a piece of software (webapp with Tomcat) using Apache commons connection pooling, and worked great for years. In the last month I had to update the libraries due to an old bug we were encountering. The bug had been fixed in a recent version.
Shortly after deploying this, we started getting exactly these messages. Out of the thousands of connections we'd get a day, a handful (under 10, usually) would get this error message. There was no real pattern, except they would sometimes cluster in little groups of 2 to 5.
I changed the options to on the pool to validate the connection every time one is taken from or put back in the pool (if one is found bad, a new one is generated instead) and the problem went away.
Have you updated your MySQL jar lately? It seems like there may be a new setting that didn't used to be there in our (admittedly very old) jar.
I agree with BalusC to try some other options on your config, such as those you're passing to MySQL (in addition to the connection timeout).
If this failure is transient like mine was, instead of permanent, then you could use a simple try/catch and a loop to keep trying until things succeed or use a connection pool to handle that detail for you.
Other random idea: I don't know what happens why you try to use a closed connection (which exception you get). Could you be accidentally closing the connection somewhere?
df_normalized = df / df.max(axis=0)
Instead of using a <text>
tag, the <foreignObject>
tag can be used, which allows for XHTML content with CSS.
It would appear that as of now (April of 2017) that the following works:
public string LoggedInUser => User.Identity.Name;
At least while within a Controller
You can put two figures inside one figure environment. For example:
\begin{figure}[p]
\centering
\includegraphics{fig1}
\caption{Caption 1}
\includegraphics{fig2}
\caption{Caption 2}
\end{figure}
Each caption will generate a separate figure number.
int *arr1[5]
In this declaration, arr1
is an array of 5 pointers to integers.
Reason: Square brackets have higher precedence over * (dereferncing operator).
And in this type, number of rows are fixed (5 here), but number of columns is variable.
int (*arr2)[5]
In this declaration, arr2
is a pointer to an integer array of 5 elements.
Reason: Here, () brackets have higher precedence than [].
And in this type, number of rows is variable, but the number of columns is fixed (5 here).
It will merger two array and remove duplicate
<?php
$first = 'your first array';
$second = 'your second array';
$result = array_merge($first,$second);
print_r($result);
$result1= array_unique($result);
print_r($result1);
?>
Try this link link1
MERGE INTO target
USING
(
--Source data
SELECT id, some_value, 0 deleteMe FROM source
--And anything that has been deleted from the source
UNION ALL
SELECT id, null some_value, 1 deleteMe
FROM
(
SELECT id FROM target
MINUS
SELECT id FROM source
)
) source
ON (target.ID = source.ID)
WHEN MATCHED THEN
--Requires a lot of ugly CASE statements, to prevent updating deleted data
UPDATE SET target.some_value =
CASE WHEN deleteMe=1 THEN target.some_value ELSE source.some_value end
,isDeleted = deleteMe
WHEN NOT MATCHED THEN
INSERT (id, some_value, isDeleted) VALUES (source.id, source.some_value, 0)
--Test data
create table target as
select 1 ID, 'old value 1' some_value, 0 isDeleted from dual union all
select 2 ID, 'old value 2' some_value, 0 isDeleted from dual;
create table source as
select 1 ID, 'new value 1' some_value, 0 isDeleted from dual union all
select 3 ID, 'new value 3' some_value, 0 isDeleted from dual;
--Results:
select * from target;
ID SOME_VALUE ISDELETED
1 new value 1 0
2 old value 2 1
3 new value 3 0
In jQuery I mostly use:
$("#element").trigger("change");
Joseph forgot to add the value in his example with withDefault
.
Here is the code I ended up using:
Map map = [:].withDefault { key -> return [] }
listOfObjects.each { map.get(it.myKey).add(it.myValue) }
In case if you get this exception in SpringBoot
application even though the entities are annotated with Entity
annotation, it might be due to the spring not aware of where to scan for entities
To explicitly specify the package, add below
@SpringBootApplication
@EntityScan({"model.package.name"})
public class SpringBootApp {...}
note: If you model classes resides in the same or sub packages of SpringBootApplication
annotated class, no need to explicitly declare the EntityScan
, by default it will scan
What I did is to use a hidden field and put the timestamp on it and then compared it to the timestamp on the Server using PHP.
If it was faster than 15 seconds (depends on how big or small is your forms) that was a bot.
Hope this help
ProgressDialog is deprecated since API 26
still you can use this:
public void button_click(View view)
{
final ProgressDialog progressDialog = ProgressDialog.show(Login.this,"Please Wait","Processing...",true);
}
I believe running from Eclipse, if you're using "myconf.properties" as the relative path, You file structure should look somehting like this
ProjectRoot
src
bin
myconf.properties
Eclipse will look for the the file in the project root dir if no other dirs are specified in the file path
You are viewing your decimal or double values in Visual Studio. That doesn't respect the culture settings you have on your code.
Change the Region and Language settings on your Control Panel if you want to see decimal
and double
values having the comma as the decimal separator.
plt.tick_params(axis='both', which='minor', labelsize=12)
QueueHandler
is native in Python 3.2+, and does exactly this. It is easily replicated in previous versions.
Python docs have two complete examples: Logging to a single file from multiple processes
For those using Python < 3.2, just copy QueueHandler
into your own code from: https://gist.github.com/vsajip/591589 or alternatively import logutils.
Each process (including the parent process) puts its logging on the Queue
, and then a listener
thread or process (one example is provided for each) picks those up and writes them all to a file - no risk of corruption or garbling.
Had the same problem, while differently from other answers in my case I use ASP.NET to develop the WebAPI server.
I already had Corps allowed and it worked for GET requests. To make POST requests work I needed to add 'AllowAnyHeader()' and 'AllowAnyMethod()' options to the list of Corp options.
Here are essential parts of related functions in Start class look like:
ConfigureServices method:
services.AddCors(options =>
{
options.AddPolicy(name: MyAllowSpecificOrigins,
builder =>
{
builder
.WithOrigins("http://localhost:4200")
.AllowAnyHeader()
.AllowAnyMethod()
//.AllowCredentials()
;
});
});
Configure method:
app.UseCors(MyAllowSpecificOrigins);
Found this from:
I've made some changes to the second most popular answer as i found this worked better for me. The changes use window.innerHeight as it is more dynamic than adding your own height for the nav (above used + 570). this allows the code to work on mobile, tablet and desktop dynamicly.
$(window).scroll(() => {
//Distance from top fo document to top of footer
topOfFooter = $('#footer').position().top;
// Distance user has scrolled from top + windows inner height
scrollDistanceFromTopOfDoc = $(document).scrollTop() + window.innerHeight;
// Difference between the two.
scrollDistanceFromTopOfFooter = scrollDistanceFromTopOfDoc - topOfFooter;
// If user has scrolled further than footer,
if (scrollDistanceFromTopOfDoc > topOfFooter) {
// add margin-bottom so button stays above footer.
$('#floating-button').css('margin-bottom', 0 + scrollDistanceFromTopOfFooter);
} else {
// remove margin-bottom so button goes back to the bottom of the page
$('#floating-button').css('margin-bottom', 0);
}
});
@JohnHartsock: You can also write type="password". It's acceptable in aspx.
<asp:TextBox ID="txtBox" type="password" runat="server"/>
Make sure you're calling super()
as the first thing in your constructor.
You should set this
for setAuthorState
method
class ManageAuthorPage extends Component {
state = {
author: { id: '', firstName: '', lastName: '' }
};
constructor(props) {
super(props);
this.handleAuthorChange = this.handleAuthorChange.bind(this);
}
handleAuthorChange(event) {
let {name: fieldName, value} = event.target;
this.setState({
[fieldName]: value
});
};
render() {
return (
<AuthorForm
author={this.state.author}
onChange={this.handleAuthorChange}
/>
);
}
}
Another alternative based on arrow function
:
class ManageAuthorPage extends Component {
state = {
author: { id: '', firstName: '', lastName: '' }
};
handleAuthorChange = (event) => {
const {name: fieldName, value} = event.target;
this.setState({
[fieldName]: value
});
};
render() {
return (
<AuthorForm
author={this.state.author}
onChange={this.handleAuthorChange}
/>
);
}
}
You can either use JavaScript or CSS3.
JavaScript solution: Use an absolute positioned <img>
tag and resize it on the page load and whenever the page resizes. Be careful of possible bugs when trying to get the page/window size.
CSS3 solution: Use the CSS3 background-size property. You might use either 100% 100%
or contain
or cover
, depending on how you want the image to resize. Of course, this only works on modern browsers.
Logs rotate for a reason, so that you only keep so many log files around. In log4j.xml you can add this to your node:
<param name="MaxBackupIndex" value="20"/>
The value tells log4j.xml to only keep 20 rotated log files around. You can limit this to 5 if you want or even 1. If your application isn't logging that much data, and you have 20 log files spanning the last 8 months, but you only need a weeks worth of logs, then I think you need to tweak your log4j.xml "MaxBackupIndex" and "MaxFileSize" params.
Alternatively, if you are using a properties file (instead of the xml) and wish to save 15 files (for example)
log4j.appender.[appenderName].MaxBackupIndex = 15
I've encountered string, which had mixings of English, Russian and some other alphabets, which caused exception. I need only Russian and English, and this currently works for me:
ec1 = Encoding::Converter.new "UTF-8","Windows-1251",:invalid=>:replace,:undef=>:replace,:replace=>""
ec2 = Encoding::Converter.new "Windows-1251","UTF-8",:invalid=>:replace,:undef=>:replace,:replace=>""
t = ec2.convert ec1.convert t
You can do this with make - with gnu make it is the -j flag (this will also help on a uniprocessor machine).
For example if you want 4 parallel jobs from make:
make -j 4
You can also run gcc in a pipe with
gcc -pipe
This will pipeline the compile stages, which will also help keep the cores busy.
If you have additional machines available too, you might check out distcc, which will farm compiles out to those as well.
According to the RFC that introduced the operator, $a <=> $b
evaluates to:
$a == $b
$a < $b
$a > $b
which seems to be the case in practice in every scenario I've tried, although strictly the official docs only offer the slightly weaker guarantee that $a <=> $b
will return
an integer less than, equal to, or greater than zero when
$a
is respectively less than, equal to, or greater than$b
Regardless, why would you want such an operator? Again, the RFC addresses this - it's pretty much entirely to make it more convenient to write comparison functions for usort
(and the similar uasort
and uksort
).
usort
takes an array to sort as its first argument, and a user-defined comparison function as its second argument. It uses that comparison function to determine which of a pair of elements from the array is greater. The comparison function needs to return:
an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.
The spaceship operator makes this succinct and convenient:
$things = [
[
'foo' => 5.5,
'bar' => 'abc'
],
[
'foo' => 7.7,
'bar' => 'xyz'
],
[
'foo' => 2.2,
'bar' => 'efg'
]
];
// Sort $things by 'foo' property, ascending
usort($things, function ($a, $b) {
return $a['foo'] <=> $b['foo'];
});
// Sort $things by 'bar' property, descending
usort($things, function ($a, $b) {
return $b['bar'] <=> $a['bar'];
});
More examples of comparison functions written using the spaceship operator can be found in the Usefulness section of the RFC.
Yes, there are a number of ways that you can do this. The "fastest" way would be to add CSS to the div similar to the following
#term-defs {
height: 300px;
overflow: scroll; }
This will force the div to be scrollable, but this might not get the best effect. Another route would be to absolute fix the position of the items at the top, you can play with this by doing something like this.
#top {
position: fixed;
top: 0;
left: 0;
z-index: 999;
width: 100%;
height: 23px;
}
This will fix it to the top, on top of other content with a height of 23px.
The final implementation will depend on what effect you really want.
While the solution provided by @jmfenoll works, it updates to the latest packages. In my case, having installed beta2 (prerelease) it updated all of the libs to RC1 (which had a bug). Thus the above solution does only half of the job.
If you are in the same situation as I am and you would like to synchronize your project with the exact version of the NuGet packages you have/or specified in your packages.config
, then, then this script might help you. Simply copy&paste it into your Package Manager Console
function Sync-References([string]$PackageId) {
get-project -all | %{
$proj = $_ ;
Write-Host $proj.name;
get-package -project $proj.name | ? { $_.id -match $PackageId } | % {
Write-Host $_.id;
uninstall-package -projectname $proj.name -id $_.id -version $_.version -RemoveDependencies -force ;
install-package -projectname $proj.name -id $_.id -version $_.version
}
}
}
And then execute it either with a sepific package name like
Sync-References AutoMapper
or for all packages like
Sync-References
Credits go to Dan Haywood and his blog post.
The AWS console wont show you this but you can use Bucket Explorer or Cloudberry Explorer to get the total size of a bucket. Both have free versions available.
Note: these products still have to get the size of each individual object, so it could take a long time for buckets with lots of objects.
In order to verify a client certificate is being sent to the server, you need to analyze the output from the combination of the -state
and -debug
flags.
First as a baseline, try running
$ openssl s_client -connect host:443 -state -debug
You'll get a ton of output, but the lines we are interested in look like this:
SSL_connect:SSLv3 read server done A
write to 0x211efb0 [0x21ced50] (12 bytes => 12 (0xC))
0000 - 16 03 01 00 07 0b 00 00-03 .........
000c - <SPACES/NULS>
SSL_connect:SSLv3 write client certificate A
What's happening here:
The -state
flag is responsible for displaying the end of the previous section:
SSL_connect:SSLv3 read server done A
This is only important for helping you find your place in the output.
Then the -debug
flag is showing the raw bytes being sent in the next step:
write to 0x211efb0 [0x21ced50] (12 bytes => 12 (0xC))
0000 - 16 03 01 00 07 0b 00 00-03 .........
000c - <SPACES/NULS>
Finally, the -state
flag is once again reporting the result of the step that -debug
just echoed:
SSL_connect:SSLv3 write client certificate A
So in other words: s_client
finished reading data sent from the server, and sent 12 bytes to the server as (what I assume is) a "no client certificate" message.
If you repeat the test, but this time include the -cert
and -key
flags like this:
$ openssl s_client -connect host:443 \
-cert cert_and_key.pem \
-key cert_and_key.pem \
-state -debug
your output between the "read server done" line and the "write client certificate" line will be much longer, representing the binary form of your client certificate:
SSL_connect:SSLv3 read server done A
write to 0x7bd970 [0x86d890] (1576 bytes => 1576 (0x628))
0000 - 16 03 01 06 23 0b 00 06-1f 00 06 1c 00 06 19 31 ....#..........1
(*SNIP*)
0620 - 95 ca 5e f4 2f 6c 43 11- ..^%/lC.
SSL_connect:SSLv3 write client certificate A
The 1576 bytes
is an excellent indication on its own that the cert was transmitted, but on top of that, the right-hand column will show parts of the certificate that are human-readable: You should be able to recognize the CN and issuer strings of your cert in there.
response.session.access_token
doesn't work in my code. But this works:
response.authResponse.accessToken
FB.login(function(response) { alert(response.authResponse.accessToken);
}, {perms:'read_stream,publish_stream,offline_access'});
Since i had problems with the other solutions (especially to get it working in all browsers, for example edge doesn't recognize "*" as a valid value for "Access-Control-Allow-Methods"), i had to use a custom filter component, which in the end worked for me and did exactly what i wanted to achieve.
@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
public class CorsFilter implements Filter {
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
throws IOException, ServletException {
HttpServletResponse response = (HttpServletResponse) res;
HttpServletRequest request = (HttpServletRequest) req;
response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Credentials", "true");
response.setHeader("Access-Control-Allow-Methods",
"ACL, CANCELUPLOAD, CHECKIN, CHECKOUT, COPY, DELETE, GET, HEAD, LOCK, MKCALENDAR, MKCOL, MOVE, OPTIONS, POST, PROPFIND, PROPPATCH, PUT, REPORT, SEARCH, UNCHECKOUT, UNLOCK, UPDATE, VERSION-CONTROL");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Headers",
"Origin, X-Requested-With, Content-Type, Accept, Key, Authorization");
if ("OPTIONS".equalsIgnoreCase(request.getMethod())) {
response.setStatus(HttpServletResponse.SC_OK);
} else {
chain.doFilter(req, res);
}
}
public void init(FilterConfig filterConfig) {
// not needed
}
public void destroy() {
//not needed
}
}
Here's some madness for you, I actually went and measured it. Bloody hell, imagine that. I think I got some meaningful results.
I used a dual core P4, running Windows, using mingw gcc 4.4, building with "gcc foo.c -o foo.exe -std=c99 -Wall -O2".
I tested method 1 and method 2 from the original post. Initially kept the malloc outside the benchmark loop. Method 1 was 48 times faster than method 2. Bizarrely, removing -O2 from the build command made the resulting exe 30% faster (haven't investigated why yet).
Then I added a malloc and free inside the loop. That slowed down method 1 by a factor of 4.4. Method 2 slowed down by a factor of 1.1.
So, malloc + strlen + free DO NOT dominate the profile enough to make avoiding sprintf worth while.
Here's the code I used (apart from the loops were implemented with < instead of != but that broke the HTML rendering of this post):
void a(char *first, char *second, char *both)
{
for (int i = 0; i != 1000000 * 48; i++)
{
strcpy(both, first);
strcat(both, " ");
strcat(both, second);
}
}
void b(char *first, char *second, char *both)
{
for (int i = 0; i != 1000000 * 1; i++)
sprintf(both, "%s %s", first, second);
}
int main(void)
{
char* first= "First";
char* second = "Second";
char* both = (char*) malloc((strlen(first) + strlen(second) + 2) * sizeof(char));
// Takes 3.7 sec with optimisations, 2.7 sec WITHOUT optimisations!
a(first, second, both);
// Takes 3.7 sec with or without optimisations
//b(first, second, both);
return 0;
}
There is a better way of checking radios and checkbox; you have to pass an array of values to the val method instead of a raw value
Note: If you simply pass the value by itself (without being inside an array), that will result in all values of "mygroup" being set to the value.
$("input[name=mygroup]").val([5]);
Here is the jQuery doc that explains how it works: http://api.jquery.com/val/#val-value
And .val([...])
also works with form elements like <input type="checkbox">
, <input type="radio">
, and <option>
s inside of a <select>
.
The inputs and the options having a value that matches one of the elements of the array will be checked or selected, while those having a value that don't match one of the elements of the array will be unchecked or unselected
Fiddle demonstrating this working: https://jsfiddle.net/92nekvp3/
In practice, you will often want to act differently depending on whether a variable is an Array or a Hash, not just mere tell. In this situation, an elegant idiom is the following:
case item
when Array
#do something
when Hash
#do something else
end
Note that you don't call the .class
method on item
.
Dim arr As Object
Dim InputArray
'Creating a array list
Set arr = CreateObject("System.Collections.ArrayList")
'String
InputArray = Array("d", "c", "b", "a", "f", "e", "g")
'number
'InputArray = Array(6, 5, 3, 4, 2, 1)
' adding the elements in the array to array_list
For Each element In InputArray
arr.Add element
Next
'sorting happens
arr.Sort
'Converting ArrayList to an array
'so now a sorted array of elements is stored in the array sorted_array.
sorted_array = arr.toarray
You can make both arguments lower case, and that way you will always end up with a case insensitive search.
var string1 = "aBc";
var string2 = "AbC";
if (string1.toLowerCase() === string2.toLowerCase())
{
#stuff
}
SELECT to_char(emp_login_date,'DD-MON-YYYY HH24:MI:SS'),A.*
FROM emp_log A
WHERE emp_login_date BETWEEN to_date(to_char('21-MAY-2015 11:50:14'),'DD-MON-YYYY HH24:MI:SS')
AND
to_date(to_char('22-MAY-2015 17:56:52'),'DD-MON-YYYY HH24:MI:SS')
ORDER BY emp_login_date
I have successfully used the Enterprise DT FTP library, which is free and open source. I can't compare it to other libraries (like the Apache Commons Net library) since I haven't used them. It does provide a simple upgrade path to SFTP (over SSH) and FTPS (over SSL), though that is a pay-for commercial product.
I wanted to display the value of a formset field. I concluded this solution, which should work for normal forms too:
{% if form.email.data %} {{ form.email.data }}
{% else %} {{ form.initial.email }}
{% endif %}
The above solutions didn't worked very well for me, and I doubt they would work in case of prefixed forms (such as wizards and formsets).
The solutions using {{ form.data.email }}
can't work, because it is a dictionary lookup, and with prefixed forms your field name would look something like '1-email' (wizard and prefixed form) or 'form-1-email' (formset), and the minus sign (-) are not allowed in dotted template lookup expressions.
{{form.field_name.value}}
is Django 1.3+ only.
I would prefer the C++ size constraints over the C versions:
// Ignore to the end of file
cin.ignore(std::numeric_limits<std::streamsize>::max())
// Ignore to the end of line
cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n')
Visual examples help with this kind of question.
In order to create a gradient, you create an xml file in res/drawable. I am calling mine my_gradient_drawable.xml:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<gradient
android:type="linear"
android:angle="0"
android:startColor="#f6ee19"
android:endColor="#115ede" />
</shape>
You set it to the background of some view. For example:
<View
android:layout_width="200dp"
android:layout_height="100dp"
android:background="@drawable/my_gradient_drawable"/>
Set the angle
for a linear
type. It must be a multiple of 45 degrees.
<gradient
android:type="linear"
android:angle="0"
android:startColor="#f6ee19"
android:endColor="#115ede" />
Set the gradientRadius
for a radial
type. Using %p
means it is a percentage of the smallest dimension of the parent.
<gradient
android:type="radial"
android:gradientRadius="10%p"
android:startColor="#f6ee19"
android:endColor="#115ede" />
I don't know why anyone would use a sweep, but I am including it for completeness. I couldn't figure out how to change the angle, so I am only including one image.
<gradient
android:type="sweep"
android:startColor="#f6ee19"
android:endColor="#115ede" />
You can also change the center of the sweep or radial types. The values are fractions of the width and height. You can also use %p
notation.
android:centerX="0.2"
android:centerY="0.7"
You can use res.previous()
as follows:
ResulerSet res = getDate();
if(!res.next()) {
System.out.println("No Data Found.");
} else {
res.previous();
while(res.next()) {
//code to display the data in the table.
}
}
You can catch it like any other exception:
try {
foo();
}
catch (const std::bad_alloc&) {
return -1;
}
Quite what you can usefully do from this point is up to you, but it's definitely feasible technically.
In general you cannot, and should not try, to respond to this error. bad_alloc
indicates that a resource cannot be allocated because not enough memory is available. In most scenarios your program cannot hope to cope with that, and terminating soon is the only meaningful behaviour.
Worse, modern operating systems often over-allocate: on such systems, malloc
and new
can return a valid pointer even if there is not enough free memory left – std::bad_alloc
will never be thrown, or is at least not a reliable sign of memory exhaustion. Instead, attempts to access the allocated memory will then result in a segmentation fault, which is not catchable (you can handle the segmentation fault signal, but you cannot resume the program afterwards).
The only thing you could do when catching std::bad_alloc
is to perhaps log the error, and try to ensure a safe program termination by freeing outstanding resources (but this is done automatically in the normal course of stack unwinding after the error gets thrown if the program uses RAII appropriately).
In certain cases, the program may attempt to free some memory and try again, or use secondary memory (= disk) instead of RAM but these opportunities only exist in very specific scenarios with strict conditions:
It’s exceedingly rare that applications have control over point 1 — userspace applications never do, it’s a system-wide setting that requires root permissions to change.1
OK, so let’s assume you’ve fixed point 1. What you can now do is for instance use a LRU cache for some of your data (probably some particularly large business objects that can be regenerated or reloaded on demand). Next, you need to put the actual logic that may fail into a function that supports retry — in other words, if it gets aborted, you can just relaunch it:
lru_cache<widget> widget_cache;
double perform_operation(int widget_id) {
std::optional<widget> maybe_widget = widget_cache.find_by_id(widget_id);
if (not maybe_widget) {
maybe_widget = widget_cache.store(widget_id, load_widget_from_disk(widget_id));
}
return maybe_widget->frobnicate();
}
…
for (int num_attempts = 0; num_attempts < MAX_NUM_ATTEMPTS; ++num_attempts) {
try {
return perform_operation(widget_id);
} catch (std::bad_alloc const&) {
if (widget_cache.empty()) throw; // memory error elsewhere.
widget_cache.remove_oldest();
}
}
// Handle too many failed attempts here.
But even here, using std::set_new_handler
instead of handling std::bad_alloc
provides the same benefit and would be much simpler.
1 If you’re creating an application that does control point 1, and you’re reading this answer, please shoot me an email, I’m genuinely curious about your circumstances.
new
in c++?The usual notion is that if new
operator cannot allocate dynamic memory of the requested size, then it should throw an exception of type std::bad_alloc
.
However, something more happens even before a bad_alloc
exception is thrown:
C++03 Section 3.7.4.1.3: says
An allocation function that fails to allocate storage can invoke the currently installed new_handler(18.4.2.2), if any. [Note: A program-supplied allocation function can obtain the address of the currently installed new_handler using the set_new_handler function (18.4.2.3).] If an allocation function declared with an empty exception-specification (15.4), throw(), fails to allocate storage, it shall return a null pointer. Any other allocation function that fails to allocate storage shall only indicate failure by throw-ing an exception of class std::bad_alloc (18.4.2.1) or a class derived from std::bad_alloc.
Consider the following code sample:
#include <iostream>
#include <cstdlib>
// function to call if operator new can't allocate enough memory or error arises
void outOfMemHandler()
{
std::cerr << "Unable to satisfy request for memory\n";
std::abort();
}
int main()
{
//set the new_handler
std::set_new_handler(outOfMemHandler);
//Request huge memory size, that will cause ::operator new to fail
int *pBigDataArray = new int[100000000L];
return 0;
}
In the above example, operator new
(most likely) will be unable to allocate space for 100,000,000 integers, and the function outOfMemHandler()
will be called, and the program will abort after issuing an error message.
As seen here the default behavior of new
operator when unable to fulfill a memory request, is to call the new-handler
function repeatedly until it can find enough memory or there is no more new handlers. In the above example, unless we call std::abort()
, outOfMemHandler()
would be called repeatedly. Therefore, the handler should either ensure that the next allocation succeeds, or register another handler, or register no handler, or not return (i.e. terminate the program). If there is no new handler and the allocation fails, the operator will throw an exception.
new_handler
and set_new_handler
?new_handler
is a typedef for a pointer to a function that takes and returns nothing, and set_new_handler
is a function that takes and returns a new_handler
.
Something like:
typedef void (*new_handler)();
new_handler set_new_handler(new_handler p) throw();
set_new_handler's parameter is a pointer to the function operator new
should call if it can't allocate the requested memory. Its return value is a pointer to the previously registered handler function, or null if there was no previous handler.
Given the behavior of new
a well designed user program should handle out of memory conditions by providing a proper new_handler
which does one of the following:
Make more memory available: This may allow the next memory allocation attempt inside operator new's loop to succeed. One way to implement this is to allocate a large block of memory at program start-up, then release it for use in the program the first time the new-handler is invoked.
Install a different new-handler: If the current new-handler can't make any more memory available, and of there is another new-handler that can, then the current new-handler can install the other new-handler in its place (by calling set_new_handler
). The next time operator new calls the new-handler function, it will get the one most recently installed.
(A variation on this theme is for a new-handler to modify its own behavior, so the next time it's invoked, it does something different. One way to achieve this is to have the new-handler modify static, namespace-specific, or global data that affects the new-handler's behavior.)
Uninstall the new-handler: This is done by passing a null pointer to set_new_handler
. With no new-handler installed, operator new
will throw an exception ((convertible to) std::bad_alloc
) when memory allocation is unsuccessful.
Throw an exception convertible to std::bad_alloc
. Such exceptions are not be caught by operator new
, but will propagate to the site originating the request for memory.
Not return: By calling abort
or exit
.
Add below alias to your ~/.bash_profile
, then run, source ~/.bash_profile
; now anytime you need to see the updated files in the last commit, run, showfiles
from your git repository.
alias showfiles='git show --pretty="format:" --name-only'
You could create your own:
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import javax.swing.*;
public class Main {
public static void main(String[] args) {
final JFrame frame = new JFrame();
frame.setLayout(new BorderLayout());
final JTextField textFieldA = new HintTextField("A hint here");
final JTextField textFieldB = new HintTextField("Another hint here");
frame.add(textFieldA, BorderLayout.NORTH);
frame.add(textFieldB, BorderLayout.CENTER);
JButton btnGetText = new JButton("Get text");
btnGetText.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String message = String.format("textFieldA='%s', textFieldB='%s'",
textFieldA.getText(), textFieldB.getText());
JOptionPane.showMessageDialog(frame, message);
}
});
frame.add(btnGetText, BorderLayout.SOUTH);
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.setVisible(true);
frame.pack();
}
}
class HintTextField extends JTextField implements FocusListener {
private final String hint;
private boolean showingHint;
public HintTextField(final String hint) {
super(hint);
this.hint = hint;
this.showingHint = true;
super.addFocusListener(this);
}
@Override
public void focusGained(FocusEvent e) {
if(this.getText().isEmpty()) {
super.setText("");
showingHint = false;
}
}
@Override
public void focusLost(FocusEvent e) {
if(this.getText().isEmpty()) {
super.setText(hint);
showingHint = true;
}
}
@Override
public String getText() {
return showingHint ? "" : super.getText();
}
}
If you're still on Java 1.5, replace the this.getText().isEmpty()
with this.getText().length() == 0
.
As others have said, mysql does not provide regex tools for extracting sub-strings. That's not to say you can't have them though if you're prepared to extend mysql with user-defined functions:
https://github.com/mysqludf/lib_mysqludf_preg
That may not be much help if you want to distribute your software, being an impediment to installing your software, but for an in-house solution it may be appropriate.
** Here myTF is outlet for MT TEXT FIELD **
let border = CALayer()
let width = CGFloat(2.0)
border.borderColor = UIColor.darkGray.cgColor
border.frame = CGRect(x: 0, y: self.myTF.frame.size.height - width, width: self.myTF.frame.size.width, height: self.myTF.frame.size.height)
border.borderWidth = width
self.myTF.layer.addSublayer(border)
self.myTF.layer.masksToBounds = true
Some thoughts:
jQuery is a JavaScript library, not a language. So, JavaScript arrays look something like this:
var someNumbers = [1, 2, 3, 4, 5];
{ pageNo: $(this).text(), sortBy: $("#sortBy").val()}
is a map of key to value. If you want an array of the keys or values, you can do something like this:
var keys = [];
var values = [];
var object = { pageNo: $(this).text(), sortBy: $("#sortBy").val()};
$.each(object, function(key, value) {
keys.push(key);
values.push(value);
});
objects in JavaScript are incredibly flexible. If you want to create an object {foo: 1}
, all of the following work:
var obj = {foo: 1};
var obj = {};
obj['foo'] = 1;
var obj = {};
obj.foo = 1;
To wrap up, do you want this?
var data = {};
// either way of changing data will work:
data.pageNo = $(this).text();
data['sortBy'] = $("#sortBy").val();
$("#results").load("jquery-routing.php", data);
Excel has no way of gathering that attribute with it's built-in functions. If you're willing to use some VB, all your color-related questions are answered here:
http://www.cpearson.com/excel/colors.aspx
Example form the site:
The SumColor function is a color-based analog of both the SUM and SUMIF function. It allows you to specify separate ranges for the range whose color indexes are to be examined and the range of cells whose values are to be summed. If these two ranges are the same, the function sums the cells whose color matches the specified value. For example, the following formula sums the values in B11:B17 whose fill color is red.
=SUMCOLOR(B11:B17,B11:B17,3,FALSE)
The Key is the AssemblyResolve event raised by the AppDomain.
[STAThread]
static void Main(string[] args)
{
fileDialog.ShowDialog();
string fileName = fileDialog.FileName;
if (string.IsNullOrEmpty(fileName) == false)
{
AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;
if (Directory.Exists(@"c:\Provisioning\") == false)
Directory.CreateDirectory(@"c:\Provisioning\");
assemblyDirectory = Path.GetDirectoryName(fileName);
Assembly loadedAssembly = Assembly.LoadFile(fileName);
List<Type> assemblyTypes = loadedAssembly.GetTypes().ToList<Type>();
foreach (var type in assemblyTypes)
{
if (type.IsInterface == false)
{
StreamWriter jsonFile = File.CreateText(string.Format(@"c:\Provisioning\{0}.json", type.Name));
JavaScriptSerializer serializer = new JavaScriptSerializer();
jsonFile.WriteLine(serializer.Serialize(Activator.CreateInstance(type)));
jsonFile.Close();
}
}
}
}
static Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
{
string[] tokens = args.Name.Split(",".ToCharArray());
System.Diagnostics.Debug.WriteLine("Resolving : " + args.Name);
return Assembly.LoadFile(Path.Combine(new string[]{assemblyDirectory,tokens[0]+ ".dll"}));
}
By pooling the answer by Louis St-Amour and the NSUserDefaults+UnRegisterDefaults
category from this question/answer, you can use the following methods to start and stop user-agent spoofing at any time while your app is running:
#define kUserAgentKey @"UserAgent"
- (void)startSpoofingUserAgent:(NSString *)userAgent {
[[NSUserDefaults standardUserDefaults] registerDefaults:@{ kUserAgentKey : userAgent }];
}
- (void)stopSpoofingUserAgent {
[[NSUserDefaults standardUserDefaults] unregisterDefaultForKey:kUserAgentKey];
}
As said above getch()
is in the ncurses
library. ncurses has to be initialized, see i.e. getchar() returns the same value (27) for up and down arrow keys for this
The Valery's answer helped me: https://stackoverflow.com/a/14265815/492457
WAMP uses different php.ini files in the CLI and for Apache. when you enable php_openssl through the WAMP UI, you enable it for Apache, not for the CLI. You need to modify C:\wamp\bin\php\php-5.4.3\php.ini to enable it for the CLI.
Invoking dev.off()
to make RStudio open up a new graphics device with default settings worked for me. HTH.
ps -eo pid,etime,cmd|sort -n -k2
Unfortunately there is no "simple" way to check a users credentials on AD.
With every method presented so far, you may get a false-negative: A user's creds will be valid, however AD will return false under certain circumstances:
ActiveDirectory will not allow you to use LDAP to determine if a password is invalid due to the fact that a user must change password or if their password has expired.
To determine password change or password expired, you may call Win32:LogonUser(), and check the windows error code for the following 2 constants:
You need to read (and post) the output of
sc query intelhaxm
as stated on http://developer.android.com/tools/devices/emulator.html#accel-vm
You open a command prompt window by right click on the start menu, choose execute and write 'cmd'.
See also Android Emulator Doesn't Use HAXM .
If you cannot get the emulator to work you might want to try out an easier alternative: Genymotion - http://genymotion.com/
The function itself looks fine to me. The problem could be that you aren't allocating enough space for your string to pad that many characters onto it. You could avoid this problem in the future by passing a size_of_string
argument to the function and make sure you don't pad the string when the length is about to be greater than the size.
In C#, you can write
(long)(date - new DateTime(1970, 1, 1)).TotalMilliseconds
While this is very likely to be lost at the bottom of so many answers, the top solutions here were not working for me.
As far as I could tell neither would any of the other answers have helped.
Situation:
In an HTML5 page I had a menu that was a nav element inside a header (not THE header but a header in another element).
I wanted the navigation to stick to the top once a user scrolled to it, but previous to this the header was absolute positioned (so I could have it overlay something else slightly).
The solutions above never triggered a change because .offsetTop was not going to change as this was an absolute positioned element. Additionally the .scrollTop property was simply the top of the top most element... that is to say 0 and always would be 0.
Any tests I performed utilizing these two (and same with getBoundingClientRect results) would not tell me if the top of the navigation bar ever scrolled to the top of the viewable page (again, as reported in console, they simply stayed the same numbers while scrolling occurred).
Solution
The solution for me was utilizing
window.visualViewport.pageTop
The value of the pageTop property reflects the viewable section of the screen, therefore allowing me to track where an element is in reference to the boundaries of the viewable area.
Probably unnecessary to say, anytime I am dealing with scrolling I expect to use this solution to programatically respond to movement of elements being scrolled.
Hope it helps someone else.
IMPORTANT NOTE: This appears to work in Chrome and Opera currently & definitely not in Firefox (6-2018)... until Firefox supports visualViewport I recommend NOT using this method, (and I hope they do soon... it makes a lot more sense than the rest).
UPDATE:
Just a note regarding this solution.
While I still find what I discovered to be very valuable for situations in which "...programmatically respond to movement of elements being scrolled." is applicable. The better solution for the problem that I had was to use CSS to set position: sticky on the element. Using sticky you can have an element stay at the top without using javascript (NOTE: there are times this will not work as effectively as changing the element to fixed but for most uses the sticky approach will likely be superior)
UPDATE01:
So I realized that for a different page I had a requirement where I needed to detect the position of an element in a mildly complex scrolling setup (parallax plus elements that scroll past as part of a message).
I realized in that scenario that the following provided the value I utilized to determine when to do something:
let bodyElement = document.getElementsByTagName('body')[0];
let elementToTrack = bodyElement.querySelector('.trackme');
trackedObjPos = elementToTrack.getBoundingClientRect().top;
if(trackedObjPos > 264)
{
bodyElement.style.cssText = '';
}
Hope this answer is more widely useful now.
Use an interval instead of an integer:
SELECT *
FROM table
WHERE auth_user.lastactivity > CURRENT_TIMESTAMP - INTERVAL '100 days'
According to the discussion here you can directly compare two vectors using
==
if (vector1 == vector2){
//true
}
else{
//false
}
For Laravel 2020. Ok, an example:
<form class="modal-content animate" action="{{ url('login_kun') }}" method="post">
@csrf // !!! attention - this string is a must
....
</form>
And then in web.php:
Route::post("/login_kun", "LoginController@login");
And one more in new created LoginController:
public function login(Request $request){
dd($request->all());
}
and you are done my friend.
Tested and works on SQL 2005 and 2008. Not sure if this works in 2012 and later.
The solution uses DATENAME instead of DATEPART
select datename(dw,getdate()) --Thursday
select datepart(dw,getdate()) --2
This is work in sql 2014 also.
In case anyone had the same problem: check this as @PravinS suggested. I used the exact same code as shown there and it worked for me perfectly.
This is the relevant part of the server code that helped:
if (isset($_POST['btnUpload']))
{
$url = "URL_PATH of upload.php"; // e.g. http://localhost/myuploader/upload.php // request URL
$filename = $_FILES['file']['name'];
$filedata = $_FILES['file']['tmp_name'];
$filesize = $_FILES['file']['size'];
if ($filedata != '')
{
$headers = array("Content-Type:multipart/form-data"); // cURL headers for file uploading
$postfields = array("filedata" => "@$filedata", "filename" => $filename);
$ch = curl_init();
$options = array(
CURLOPT_URL => $url,
CURLOPT_HEADER => true,
CURLOPT_POST => 1,
CURLOPT_HTTPHEADER => $headers,
CURLOPT_POSTFIELDS => $postfields,
CURLOPT_INFILESIZE => $filesize,
CURLOPT_RETURNTRANSFER => true
); // cURL options
curl_setopt_array($ch, $options);
curl_exec($ch);
if(!curl_errno($ch))
{
$info = curl_getinfo($ch);
if ($info['http_code'] == 200)
$errmsg = "File uploaded successfully";
}
else
{
$errmsg = curl_error($ch);
}
curl_close($ch);
}
else
{
$errmsg = "Please select the file";
}
}
html form should look something like:
<form action="uploadpost.php" method="post" name="frmUpload" enctype="multipart/form-data">
<tr>
<td>Upload</td>
<td align="center">:</td>
<td><input name="file" type="file" id="file"/></td>
</tr>
<tr>
<td> </td>
<td align="center"> </td>
<td><input name="btnUpload" type="submit" value="Upload" /></td>
</tr>
Here's a simple way
for (i in 1:10) {
skip_to_next <- FALSE
# Note that print(b) fails since b doesn't exist
tryCatch(print(b), error = function(e) { skip_to_next <<- TRUE})
if(skip_to_next) { next }
}
Note that the loop completes all 10 iterations, despite errors. You can obviously replace print(b)
with any code you want. You can also wrap many lines of code in {
and }
if you have more than one line of code inside the tryCatch
Set the width of post-content and post-thumb so that you get a two-column layout.
See man git merge (HOW TO RESOLVE CONFLICTS):
After seeing a conflict, you can do two things:
Decide not to merge. The only clean-ups you need are to reset the index file to the HEAD commit to reverse 2. and to clean up working tree changes made by 2. and 3.; git-reset --hard can be used for this.
Resolve the conflicts. Git will mark the conflicts in the working tree. Edit the files into shape and git add them to the index. Use git commit to seal the deal.
And under TRUE MERGE (to see what 2. and 3. refers to):
When it is not obvious how to reconcile the changes, the following happens:
The HEAD pointer stays the same.
The MERGE_HEAD ref is set to point to the other branch head.
Paths that merged cleanly are updated both in the index file and in your working tree.
...
So: use git reset --hard
if you want to remove the stash changes from your working tree, or git reset
if you want to just clean up the index and leave the conflicts in your working tree to merge by hand.
Under man git stash (OPTIONS, pop) you can read in addition:
Applying the state can fail with conflicts; in this case, it is not removed from the stash list. You need to resolve the conflicts by hand and call git stash drop manually afterwards.
here is the solution
Put your html and css in your /assets/ folder, then load the html file like so:
WebView wv = new WebView(this);
wv.loadUrl("file:///android_asset/yourHtml.html");
then in your html you can reference your css in the usual way
<link rel="stylesheet" type="text/css" href="main.css" />
Ok. I found problem.
It was not on the Angular side. To be honest, there were no problem at all.
Reason why I was unable to perform my request succesfuly was that my server app was not properly handling OPTIONS request.
Why OPTIONS, not POST? My server app is on different host, then frontend. Because of CORS my browser was converting POST to OPTION: http://restlet.com/blog/2015/12/15/understanding-and-using-cors/
With help of this answer: Standalone Spring OAuth2 JWT Authorization Server + CORS
I implemented proper filter on my server-side app.
Thanks to @Supamiu - the person which fingered me that I am not sending POST at all.
Depending on how often you use this in your code you could consider the following:
macro
#define SIGN(x) ( (x) >= 0 )
Inline function
inline int sign(int x)
{
return x >= 0;
}
Then you would just go:
bigInt.sign = sign(number);
So for the git merge, you can try:
DiffMerge to visually compare and merge files on Windows, OS X and Linux.
Meld, is a visual diff and merge tool.
opendiff
(part of Xcode Tools on macOS), a command line utility which launches the FileMerge application from Terminal to graphically compare files or directories, including merging.I needed to print important warning about skipped tests exactly when PyTest
muted literally everything.
I didn't want to fail a test to send a signal, so I did a hack as follow:
def test_2_YellAboutBrokenAndMutedTests():
import atexit
def report():
print C_patch.tidy_text("""
In silent mode PyTest breaks low level stream structure I work with, so
I cannot test if my functionality work fine. I skipped corresponding tests.
Run `py.test -s` to make sure everything is tested.""")
if sys.stdout != sys.__stdout__:
atexit.register(report)
The atexit
module allows me to print stuff after PyTest
released the output streams. The output looks as follow:
============================= test session starts ==============================
platform linux2 -- Python 2.7.3, pytest-2.9.2, py-1.4.31, pluggy-0.3.1
rootdir: /media/Storage/henaro/smyth/Alchemist2-git/sources/C_patch, inifile:
collected 15 items
test_C_patch.py .....ssss....s.
===================== 10 passed, 5 skipped in 0.15 seconds =====================
In silent mode PyTest breaks low level stream structure I work with, so
I cannot test if my functionality work fine. I skipped corresponding tests.
Run `py.test -s` to make sure everything is tested.
~/.../sources/C_patch$
Message is printed even when PyTest
is in silent mode, and is not printed if you run stuff with py.test -s
, so everything is tested nicely already.
Okay, so..
// As you already stated, you know that a boolean defaults to false.
boolean turnedOn;
if(turnedOn) // Here, you are saying "if turnedOn (is true, that's implicit)
{
//then do this
}
else // if it is NOT true (it is false)
{
//do this
}
Does it make more sense now?
The if
statement will evaluate whatever code you put in it that returns a boolean value, and if the evaluation returns true, you enter the first block. Else (if the value is not true, it will be false, because a boolean can either be true or false) it will enter the - yep, you guessed it - the else {}
block.
A more verbose example.
If I am asked "are you hungry?", the simple answer is yes (true). or no (false).
boolean isHungry = true; // I am always hungry dammit.
if(isHungry) { // Yes, I am hungry.
// Well, you should go grab a bite to eat then!
} else { // No, not really.
// Ah, good for you. More food for me!
// As if this would ever happen - bad example, sorry. ;)
}
update
Component inheritance is supported since 2.3.0-rc.0
original
So far, the most convenient for me is to keep template & styles into separate *html
& *.css
files and specify those through templateUrl
and styleUrls
, so it's easy reusable.
@Component {
selector: 'my-panel',
templateUrl: 'app/components/panel.html',
styleUrls: ['app/components/panel.css']
}
export class MyPanelComponent extends BasePanelComponent
These lines give the following output:
Boolean(1).toString(); // true
Boolean(0).toString(); // false
setInterval returns an id that you can use to cancel the interval with clearInterval()
The following ways work.
// The old way of using ParameterizedThreadStart. This requires a
// method which takes ONE object as the parameter so you need to
// encapsulate the parameters inside one object.
Thread t = new Thread(new ParameterizedThreadStart(StartupA));
t.Start(new MyThreadParams(path, port));
// You can also use an anonymous delegate to do this.
Thread t2 = new Thread(delegate()
{
StartupB(port, path);
});
t2.Start();
// Or lambda expressions if you are using C# 3.0
Thread t3 = new Thread(() => StartupB(port, path));
t3.Start();
The Startup methods have following signature for these examples.
public void StartupA(object parameters);
public void StartupB(int port, string path);
//convert DateTime result in jquery mvc 5 using entity fremwork
const monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
function DateAndTime(date) {
var value = new Date
(
parseInt(date.replace(/(^.*\()|([+-].*$)/g, ''))
);
var dat = value.getDate() +
"-" +
monthNames[value.getMonth()] +
"-" +
value.getFullYear();
var hours = value.getHours();
var minutes = value.getMinutes();
var ampm = hours >= 12 ? 'PM' : 'AM';
hours = hours % 12;
hours = hours ? hours : 12; // the hour '0' should be '12'
minutes = minutes < 10 ? '0' + minutes : minutes;
var strTime = hours + ':' + minutes + ' ' + ampm;
return { Date: dat, Time: strTime };
}
// var getdate = DateAndTime(StartDate);
//var Date = getdate.Date;//here get date
//var time = getdate.Time;//here get Time
//alert(Date)
This also works for you:
dots -= -5;
There is no standard macro that is set according to C standard. Some C compilers will set one on some platforms (e.g. Apple's patched GCC sets a macro to indicate that it is compiling on an Apple system and for the Darwin platform). Your platform and/or your C compiler might set something as well, but there is no general way.
Like hayalci said, it's best to have these macros set in your build process somehow. It is easy to define a macro with most compilers without modifying the code. You can simply pass -D MACRO
to GCC, i.e.
gcc -D Windows
gcc -D UNIX
And in your code:
#if defined(Windows)
// do some cool Windows stuff
#elif defined(UNIX)
// do some cool Unix stuff
#else
# error Unsupported operating system
#endif
Add the following code to DidFinishLauch in AppDelegate,
UIPageControl *pageControl = [UIPageControl appearance];
pageControl.pageIndicatorTintColor = [UIColor lightGrayColor];
pageControl.currentPageIndicatorTintColor = [UIColor blackColor];
pageControl.backgroundColor = [UIColor whiteColor];
Hope this will help.
Error 127
means one of two things:
$PATH
, or in this case, the relative path is correct -- remember that the current working directory for a random terminal might not be the same for the IDE you're using. it might be better to just use an absolute path instead.file -L
on /bin/sh
(to get your default/native format) and on the compiler itself (to see what format it is).if the problem is (2), then you can solve it in a few diff ways:
Your local JVM or remote server may not have the required ciphers. go here
https://www.oracle.com/java/technologies/javase-jce8-downloads.html
and download the zip file that contains: US_export_policy.jar and local_policy.jar
replace the existing files (you need to find the existing path in your JVM).
on a Mac, my path was here. /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/security
this worked for me.
The layout is extremely inefficient and bloated. You don't need that many LinearLayout
s. In fact you don't need any LinearLayout
at all.
Use only one RelativeLayout
. Like this.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<ImageButton android:background="@null"
android:id="@+id/back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/back"
android:padding="10dip"
android:layout_alignParentLeft="true"/>
<ImageButton android:background="@null"
android:id="@+id/forward"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/forward"
android:padding="10dip"
android:layout_toRightOf="@id/back"/>
<ImageButton android:background="@null"
android:id="@+id/special"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/barcode"
android:padding="10dip"
android:layout_alignParentRight="true"/>
</RelativeLayout>
If you will change the ID then Toggle will not working same problem was with me i just change
<div class="collapse navbar-collapse" id="defaultNavbar1">
<ul class="nav navbar-nav">
id="defaultNavbar1" then toggle is working
UPDATE: In React 0.12+, the JSX pragma is no longer necessary.
Make sure include the JSX pragma at the top of your files:
/** @jsx React.DOM */
Without this line, the jsx
binary and in-browser transformer will leave your files unchanged.
As link-only answers are not preferred, I will just copy and paste the content of the link of the accepted answer
Which Log file? Well -- you can check the physical path by right-clicking on the System Log (e.g. Server Manager | Diagnostics | Event Viewer | Windows Logs). The default physical path is %SystemRoot%\System32\Winevt\Logs\System.evtx
.
You can create a Custom Filter and filter by "Source: WAS" to quickly see only entries generated by IIS.
You may need first to enable logging of such even for a specific App Pool -- by default App Pool has only 3 recycle events out of 8 enabled. To change it using GUI: II S Manager | Application Pools | Select App Pool -> Advanced Settings | Generate Recycle Event Log Entry.
plt.subplots()
is a function that returns a tuple containing a figure and axes object(s). Thus when using fig, ax = plt.subplots()
you unpack this tuple into the variables fig
and ax
. Having fig
is useful if you want to change figure-level attributes or save the figure as an image file later (e.g. with fig.savefig('yourfilename.png')
). You certainly don't have to use the returned figure object but many people do use it later so it's common to see. Also, all axes objects (the objects that have plotting methods), have a parent figure object anyway, thus:
fig, ax = plt.subplots()
is more concise than this:
fig = plt.figure()
ax = fig.add_subplot(111)
I created one more list by sorting Jaspers list by device RAM (I made my own tests with Split's tool and fixed some results - check my comments in Jaspers thread).
device RAM: percent range to crash
Special cases:
Device RAM can be read easily:
[NSProcessInfo processInfo].physicalMemory
From my experience it is safe to use 45% for 1GB devices, 50% for 2/3GB devices and 55% for 4GB devices. Percent for macOS can be a bit bigger.
Everything in /var/lib/docker are filesystems of containers. If you stop all your containers and prune them, you should end up with the folder being empty. You probably don't really want that, so don't go randomly deleting stuff in there. Do not delete things in /var/lib/docker directly. You may get away with it sometimes, but it's inadvisable for so many reasons.
Do this instead:
sudo bash
cd /var/lib/docker
find . -type f | xargs du -b | sort -n
What you will see is the largest files shown at the bottom. If you want, figure out what containers those files are in, enter those containers with docker exec -ti containername -- /bin/sh
and delete some files.
You can also put docker system prune -a -f
on a daily/weekly cron job as long as you aren't leaving stopped containers and volumes around that you care about. It's better to figure out the reasons why it's growing, and correct them at the container level.
Writing XML using JAXB (Java Architecture for XML Binding):
http://www.mkyong.com/java/jaxb-hello-world-example/
package com.mkyong.core;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement
public class Customer {
String name;
int age;
int id;
public String getName() {
return name;
}
@XmlElement
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
@XmlElement
public void setAge(int age) {
this.age = age;
}
public int getId() {
return id;
}
@XmlAttribute
public void setId(int id) {
this.id = id;
}
}
package com.mkyong.core;
import java.io.File;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
public class JAXBExample {
public static void main(String[] args) {
Customer customer = new Customer();
customer.setId(100);
customer.setName("mkyong");
customer.setAge(29);
try {
File file = new File("C:\\file.xml");
JAXBContext jaxbContext = JAXBContext.newInstance(Customer.class);
Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
// output pretty printed
jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
jaxbMarshaller.marshal(customer, file);
jaxbMarshaller.marshal(customer, System.out);
} catch (JAXBException e) {
e.printStackTrace();
}
}
}
The getActionCommand() method returns an String associated with that Component set through the setActionCommand() , whereas the getSource() method returns an Object of the Object class specifying the source of the event.
You can't save things to Hibernate until you've also told Hibernate about all the other objects referenced by this newly saved object. So in this case, you're telling Hibernate about a User
, but haven't told it about the Country
.
You can solve problems like this in two ways.
Manually
Call session.save(country)
before you save the User
.
CascadeType
You can specify to Hibernate that this relationship should propagate some operations using CascadeType. In this case CascadeType.PERSIST would do the job, as would CascadeType.ALL.
Referencing existing countries
Based on your response to @zerocool though, you have a second problem, which is that when you have two User
objects with the same Country
, you are not making sure it's the same Country
. To do this, you have to get the appropriate Country
from the database, set it on the new user, and then save the User
. Then, both of your User
objects will refer to the same Country
, not just two Country
instances that happen to have the same name. Review the Criteria
API as one way of fetching existing instances.
I make moving the files and then do
git add -A
which put in the sataging area all deleted/new files. Here git realizes that the file is moved.
git commit -m "my message"
git push
I do not know why but this works for me.
Session is used mainly for storing user specific data [ session specific data ]. In the case of session you can use the value for the whole session until the session expires or the user abandons the session. Viewstate is the type of data that has scope only in the page in which it is used. You canot have viewstate values accesible to other pages unless you transfer those values to the desired page. Also in the case of viewstate all the server side control datas are transferred to the server as key value pair in __Viewstate and transferred back and rendered to the appropriate control in client when postback occurs.
Isn't the difference between your declaration of USERID the problem
JOB: UserID is Varchar
USER: UserID is Number?
in my case, i was using the change command like this way
$(document).on('change', '.select-brand', function () {...my codes...});
and then i changed the way to
$('.select-brand').on('change', function () {...my codes...});
and it solved my problem.
Glide.with(context)
.load("http://test.com/yourimage.jpg")
.asBitmap() // ????????? ??? ? ?????? ??????
.fitCenter()
.into(new SimpleTarget<Bitmap>(100,100) {
@Override
public void onResourceReady(Bitmap bitmap, GlideAnimation<? super Bitmap> glideAnimation) {
// do something with you bitmap
bitmap
}
});
Okay, so the problem with eval is that it can escape its sandbox too easily, even if you get rid of __builtins__
. All the methods for escaping the sandbox come down to using getattr
or object.__getattribute__
(via the .
operator) to obtain a reference to some dangerous object via some allowed object (''.__class__.__bases__[0].__subclasses__
or similar). getattr
is eliminated by setting __builtins__
to None
. object.__getattribute__
is the difficult one, since it cannot simply be removed, both because object
is immutable and because removing it would break everything. However, __getattribute__
is only accessible via the .
operator, so purging that from your input is sufficient to ensure eval cannot escape its sandbox.
In processing formulas, the only valid use of a decimal is when it is preceded or followed by [0-9]
, so we just remove all other instances of .
.
import re
inp = re.sub(r"\.(?![0-9])","", inp)
val = eval(inp, {'__builtins__':None})
Note that while python normally treats 1 + 1.
as 1 + 1.0
, this will remove the trailing .
and leave you with 1 + 1
. You could add )
,, and
EOF
to the list of things allowed to follow .
, but why bother?
Not mentioned above. You could also crate a DateTime object by providing a timestamp as string in the constructor with a leading @ sign.
$dt = new DateTime('@123456789');
$dt->setTimezone(new DateTimeZone('America/New_York'));
echo $dt->format('F j, Y - G:i');
See the documentation about compound formats: https://www.php.net/manual/en/datetime.formats.compound.php
can you check your config
file under ~/.aws/config
- you might have an invalid section called [myname], something like this (this is an example)
[default]
region=us-west-2
output=json
[myname]
region=us-east-1
output=text
Just remove the [myname] section (including all content for this profile) and you will be fine to run aws
cli again
For Python 2.7, one can easily install using this
apt-get install python2.7-mysqldb
I think your issue may be in the url pattern. Changing
<servlet-mapping>
<servlet-name>Register</servlet-name>
<url-pattern>/Register</url-pattern>
</servlet-mapping>
and
<form action="/Register" method="post">
may fix your problem
Isn't this what default constructors are for?
class MyModel
{
public MyModel()
{
this.ReturnDate = DateTime.Now;
}
public date ReturnDate {get; set;};
}
You can add a reference to System.Configuration
in your project and then:
using System.Configuration;
then
string sValue = ConfigurationManager.AppSettings["BatchFile"];
with an app.config
file like this:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="BatchFile" value="blah.bat" />
</appSettings>
</configuration>
You're looking for Select
which can be used to transform\project the input sequence:
IEnumerable<string> strings = integers.Select(i => i.ToString());
Please check if your code doesnt consist of two module projects that have the same classes names and packages definition. For example this could happen if someone uses copy-paste to create new implementation of interface based on previous implementation.
The most efficient way is by ID.
$("#foo").val(); //by id
You can read more here:
https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Writing_efficient_CSS
https://developers.google.com/speed/docs/best-practices/rendering?hl=it#UseEfficientCSSSelectors
What I can do to fix this (other than installing a real SSL certificate).
You can't.
On an https webpage you can only make AJAX request to https webpage (With a certificate trusted by the browser, if you use a self-signed one, it will not work for your visitors)